research paper on body worn cameras

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Research on Body-Worn Cameras and Law Enforcement

Body-worn cameras are widely used by state and local law enforcement agencies in the United States. They are worn principally by officers in the performance of duties that require open and direct contact with the public. Despite their widespread and growing adoption, the current evidence regarding the effectiveness of body-worn cameras is mixed. Some studies suggest that body-worn cameras may offer benefits while others show either no impact or possible negative effects. The mixed results of these studies strongly imply that additional research is needed. In particular, more studies employing randomized control trials [1] are needed.

Use of Body-Worn Cameras

In November 2018, the Bureau of Justice Statistics (BJS) published a report on the use of body-worn cameras by law enforcement agencies in the United States in 2016. [2] This report showed that:

• 47% of general-purpose law enforcement agencies had acquired body-worn cameras; for large police departments, that number is 80%.
• Among agencies that had acquired body-worn cameras, 60% of local police departments and 49% of sheriffs' offices had fully deployed their body-worn cameras.
• Overall, in agencies that had acquired body-worn cameras there were 29 body-worn cameras in service per 100 full time officers (expected to increase to 50/100 by late 2017 based on the 2016 data).
• About 86% of general-purpose law enforcement agencies that had acquired body-worn cameras had a formal body-worn camera policy.
• Agencies not using body-worn cameras stated cost (hardware acquisition, video storage, system maintenance) to be the primary disincentive.

Are Body-Worn Cameras Effective?

According to the 2018 BJS report, the main reasons (about 80% each) that local police and sheriffs’ offices had acquired body-worn cameras were to improve officer safety, increase evidence quality, reduce civilian complaints, and reduce agency liability.

Research does not necessarily support the effectiveness of body-worn cameras in achieving those desired outcomes. A comprehensive review of 70 studies of body-worn cameras use found that the larger body of research on body-worn cameras showed no consistent or no statistically significant effects. [3]  This meta-analysis was rated by CrimeSolutions and resulted in a No Effects rating for the impact of body-worn cameras on use of force, assaults on officers, officer-initiated calls for service, arrests, traffic stops and tickets, and field interviews (i.e., stop and frisk). See  Practice Profile: Body-Worn Cameras’ Effects on Police Officer Behavior . This profile is based on a meta-analysis published in 2020. 

These mixed findings are further reflected in findings from evaluations of ten body-worn camera programs that have met the stringent criteria for inclusion in NIJ’s CrimeSolutions, see Table 1 . [4]  Across these evaluations, researchers looked at a range of outcomes, including use of force, citizen complaints, arrests, and assaults on officers. Four of the body-worn camera programs evaluated were found to have no, limited, or even negative effects.

Based on these reviews and the existing research on the impact of body-worn cameras use, it is clear that further research is essential to determine the value of body-worn cameras use and potentially the more effective ways body-worn cameras could be deployed. Given the growing use of body-worn cameras, it would be best to build in rigorous evaluations as law enforcement agencies expand their use of this technology. 

Primer on Body-Worn Cameras for Law Enforcement

Developed by the NIJ-funded NLECTC Sensor, Surveillance and Biometric Technologies Center of Excellence, A Primer on Body-Worn Cameras for Law Enforcement provides an introduction to body-worn camera systems. The  report discusses the functions and features of body-worn camera systems and highlights issues and factors that law enforcement organizations should consider before and during implementation.

Read an abstract and access the full primer .

Technical Guidance on Body-Worn Camera Technologies

Agencies should consider how body worn cameras will meet their mission needs and requirements prior to procurement and use of the technology. To provide general guidance to law enforcement practitioners, NIJ, NIST and the FBI developed a table listing operating characteristics and associated functionality descriptions based on existing technical resources about criminal justice use of video. [5] , [6] The operating characteristics and associated functionality descriptions in the table can help agencies determine what they need as they consider the commercial products available.

 Operating Characteristics and Functionality Descriptions of Body-Worn Cameras 

[note 1] RCTs provide the highest degree of confidence that observed effects are the result of the program and not of other factors.

[note 2] Hyland, S., Body-Worn Cameras in Law Enforcement Agencies , 2016, Bureau of Justice Statistics, November 2018. Note that this survey excluded federal agencies, sheriffs’ offices with only jail or court duties, and special-purpose agencies such as transit police and campus police.

[note 3] Lum, C., et al, Research on body-worn cameras: What we know, what we need to know, Criminology & Public Policy , pp. 93 – 118,  March 24, 2019

[note 4] CrimeSolutions is the NIJ-funded federal clearinghouse of evaluation research, showing what works, what does not work, and what is promising across broad expanses of criminal and juvenile justice programs and practice. Learn more about CrimeSolutions .

[note 5] Home Office Centre for Applied Science and Technology, Body-Worn Video Technical Guidance (pdf, 10 pages) , May 2014

[note 6] Scientific Working Group on Imaging Technology, Recommendations and Guidelines for Using Closed-Circuit Television Security Systems in Commercial Institutions, Version 3.0, June 8, 2012.

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What evidence supports the use of Body Worn Cameras in mental health inpatient wards? A systematic review and narrative synthesis of the effects of Body Worn Cameras in public sector services

Keiran wilson.

1 Health Services and Population Research Department, Institute of Psychiatry, Psychology & Neuroscience, King’s College London, London UK

Jessica Eaton

2 Great Ormond Street Hospital for Children, London UK

Madeleine Ellis

Ellen thomas, alan simpson.

Body‐Worn‐Cameras (BWCs) are being introduced into Mental Health Inpatient Units. At present, minimal evidence surrounding their use in a mental health environment exists. This review examined research on the uses of BWCs in public sector services including healthcare, public transportation, and law enforcement. All eligible studies included a visible BWC, recording on a continuous loop as the main intervention. The evidence base presented high levels of bias, highly varied camera protocols, and heterogeneity of outcome measurements. This review found there is limited evidence for the efficacy of BWCs to control and manage violence within mental health inpatient wards. The technology has shown to be effective in reducing the number of public complaints in a law enforcement setting, but it is unclear how this is achieved. It appears there may be potential beneficial uses and unintended consequences of BWCs yet to be explored by mental health services.

INTRODUCTION

The use of digital technology in healthcare settings has increased over recent years and presents new opportunities for the delivery of physical and mental health services in the United Kingdom (Department of Health and Social Care 2019 ). In 2005, CCTV was first introduced as a technological surveillance tool for maintaining staff and patient safety in a range of healthcare settings (Desai 2009 ). Continued technological advances in this field have led to the development of wearable camera technologies referred to here as Body Worn Cameras (BWCs). These small transportable devices are usually worn on the outside of clothing, glasses, or headwear to produce video and audio recordings (The Metropolitan Police, 2020 ).

This technology has been in use by police in the UK since 2005 (The Home Office 2007 ) and it is estimated that over 70% of police forces have started to adopt the use of BWCs (Lum et al . 2020 ). In a police setting, research suggests BWCs may enhance transparency, supplement documentation, and deter illegal and inappropriate behaviours from both officers and citizens (Bureau of Justice Assistance 2015 ). However, there is a lack of evidence supporting their efficacy, cost effectiveness, and wider social impact. The only comprehensive systematic review of literature to date found that the use of BWCs by police officers had no significant impact on police (mis)use of force or assaults against officers (Lum et al . 2020 ).

Despite a lack of evidence to support the use of BWCs in public sector services, The National Health Service (NHS) has pledged to invest (UK) £8 million in pilot testing BWCs as a way to enhance staff safety and assist in prosecuting violence against staff (Department of Health and Social Care 2019 ). Since this announcement, we have seen the roll out of BWCs in ambulance services across the country (London Ambulance Service 2021 ) and initial pilot testing in inpatient mental health services (Ellis et al . 2019 ). Safety is a considerable issue within mental health services, where staff are 7.5 times more likely to report they have been attacked than staff in other NHS services (Royal College of Nursing 2018b ). In 2020, 14.9% of staff in mental health trusts claimed that they experienced physical violence from service users or other members of the public (NHS Staff Survey 2020 : National Results Briefing 2021 ). Despite the higher rates of physical assault against staff, only 4% of alleged physical assaults by psychiatric inpatients were reported to the police in 2018 and even fewer resulted in action taken (Doedens et al . 2020 ; Young & Ready 2016 ). In a mental health setting, BWCs allow staff to record situations where conflict may occur, and containment measures may be used. However, the use of BWCs in mental health settings is in its infancy and is a strongly contested intervention (Royal College of Nursing 2018a ).

The high rate of assault against mental health nurses contributes to the high rate of staff turnover in mental health services (NHS Improvement 2019 ; Royal College of Nursing 2018b ). Despite identifying the staffing crisis as a priority in the Five Year Forward View 2017–2019 report (Department of Health and Social Care 2017 ) and the NHS Long Term Plan (Department of Health and Social Care 2019 ), the number of mental health nurses increased by <0.5% over 2019 (Buchan et al . 2019 ) and recruitment and retention remain huge challenges (Launder 2020 ). Understaffing plays a key role in the deterioration of patient care (Baker et al . 2019 ), and BWCs may be implemented in an attempt to improve staff safety and ultimately improve patient care.

However, conflict and violence in mental health wards is a complex issue that affects both staff and patients (Bowers 2014 ; Fletcher et al . 2021 ; Kumar et al . 2001 ). Research and audits conducted in inpatient services in England revealed patients often experience verbal abuse, fighting, bullying, theft, racism, and sexual assault (Care Quality Commission 2018 ; Jones et al . 2010 ). Mental health staff have a responsibility to protect their patients from physical and psychological harm during their stay; yet, frequently staff interactions with patients can fuel conflict (Papadopoulos et al . 2012 ). Mental health nurses are the staff group most likely to be involved in face‐to‐face interactions with service users who may be highly distressed and/or frustrated by the restrictions typically imposed within inpatient settings to maintain safety, such as removing personal items, restricting smoking, or limiting movements (Bowers et al . 2015 ). There are currently evidence‐based interventions, such as the Safewards model, which have been found to reduce incidents of conflict and use of containment measures (e.g., seclusion, restraint) on mental health wards (Bowers 2014 ). However, chronic understaffing can make it difficult to implement these effective interventions more widely (McAllister et al . 2019 ).

Ethical concerns remain central to wider debates surrounding the implementation of BWCs in mental healthcare settings (Royal College of Nursing 2018a ). Those who require care in an inpatient mental health ward are often admitted against their will and are at the most vulnerable point in their patient journey (Care Quality Commission 2019 ). Further, Black and South Asian minority groups are disproportionately detained under mental health legislation in the UK, and Black patients are more likely to be subject to measures to maintain safety, such as use of physical restraint (Barnett et al . 2021 ; Payne‐Gill et al . 2021 ; Rodrigues et al . 2020 ). Implementation of BWCs would likely have the greatest impact on this already vulnerable group.

While policy makers hope this new technology will bring improvements to the delivery of mental health services, it is essential that patients receive care based upon the best current evidence in conjunction with clinical expertise and patient values (Reid et al . 2017 ). A small number of BWC evaluations in mental health wards in England have been undertaken (Ellis et al . 2019 ; Hardy et al . 2017 ), but given their relatively small scale and localised focus, a wider review is required. The lack of research on BWCs in a mental health setting means it is essential to draw upon the wider literature in the public sector to explore its effects and consequences. A systematic review provides the opportunity to appraise and synthesise existing evidence across the public sector and make recommendations regarding the potential future use of BWCs in a mental health environment (Pati & Lorusso 2018 ).

This review seeks to answer the research question: Are BWCs likely to enhance safety in mental health inpatient wards based on the literature regarding BWC use across a range of public sector services ? The primary objective is to identify and systematically review literature relating to the use of BWCs in the public sector, assessing where/how BWCs are being deployed, the methods used to conduct such research, and the effect of BWCs in these settings. The findings and implications associated with BWCs in public sector services will be discussed in relation to their suitability for mental health services.

We conducted a systematic review using narrative synthesis in accordance with the Guidance on the Conduct of Narrative Synthesis (Popay et al . 2006 ). This approach facilitates synthesis of a range of methodologies and study designs and allows a focus on the wide range of BWC applications in public services. A meta‐analysis of this literature was not a suitable way to address the research questions proposed in this review (Borenstein 2009 ). For the purposes of this review, public sector services are defined as central government, local government, and public corporations delivering services to citizens, including healthcare, law enforcement, and public transportation (Office for National Statistics 2019 ).

Protocol and registration

The review protocol was registered with PROSPERO before commencement (CRD42020164878).

Eligibility criteria

Studies were only included where they met the following criteria: BWC was a standalone, visible device able to provide continuous video playback; BWC was attached to a member of staff working in a public sector service; BWC was used to record face‐to‐face interactions with the public or service users; and the study reported the methodology for evaluation. Studies were excluded if the BWC was used as a data collection tool; BWC was used outside the public sector; or BWC use was reported in an internal evaluation without reporting the methodology.

Database coverage

A search of all relevant literature was undertaken with librarian assistance using the following databases: Medline (via Ovid, 1966 to 25/05/2021); Embase (via Dialog 1974 to 25/05/2021); PsycINFO (via Datastar 1806 to 25/05/2021); Global health (via Ovid, 1966 to 25/05/2021); HMIC (via Ovid, 1979 to 25/05/2021); Web of Science (via Clarivate 1975‐ 25/05/2021); Sage Journals (via Datastar 1994‐ 25/05/2021); OpenGrey (1972 to 25/05/2021) and Google Scholar (2004‐ 25/05/2021). No limits or filters were imposed. Searches were supplemented by reference list screening and BWC websites were reviewed for publications (Reveal, Axon, Google Glass, Calla, VIEVU, Panasonic and Puma). Email alerts from all journals and RSS feeds from camera websites were utilised to ensure identification of new articles.

Search strategy

A keyword search was applied to all databases using the search terms; Body adj3 camera* OR Wearable video OR Wearable camera* OR Body worn video. An initial scoping search revealed most journal articles had yet to be indexed under a MeSH term, therefore, MeSH terms were omitted from the facet analysis.

Study selection

In May 2019, the search was conducted by JE. In May 2021, the search was repeated by KW to capture new research that was published in the time elapsed since the initial search. PRISMA reporting guidelines were followed, and a full PRISMA chart can be found in Figure  1 . Referencing software Zotero was used to de‐duplicate, and articles were screened in Microsoft Excel. To ensure unbiased selection, title and abstract screening was undertaken by two independent researchers (First search: JE, UF; Second search: KW, UF). Full text screening utilising the same criteria was undertaken. Full text exclusions were documented along with reasons. Disagreements at any stage were resolved by a third reviewer (AS; n  = 6).

PRISMA flow diagram (Moher et al . 2009 ).

Data collection

Data was extracted using a pre‐designed data collection tool included in the PROSPERO registration. The tool includes country, study design, sample size, setting, main method, camera user, recording subject, camera model, comparison arm, study length, outcome measures, and funding source. The form was piloted on 10 studies during the initial search to ensure suitability. No amendments were made. No limit on summary measures were implemented and all relevant results were collected. Efforts were made to contact authors for missing information wherever possible.

Quality appraisal

All studies were reviewed for selection, performance, attrition, detection, and publication bias. The Joanna Briggs Institute (JBI) Critical Appraisal tool was utilised (Aromataris & Munn 2020 ). Critical appraisal of all included studies was undertaken individually by JE and UF. No discrepancies were apparent. Individual scores attained from the tool were then collated to review bias across studies.

Results were divided into healthcare, law enforcement, and public transport sectors and analysed using a narrative synthesis approach according to an established framework (Popay et al . 2006 ). With this approach, main findings from the quantitative studies in each sector were summarised and further supplemented with examples from the qualitative studies. KW, JE, and ME identified the effects, outcomes, and experiences of BWCs from the qualitative data.

Study characteristics

An overview of the 52 studies included in this review can be found in Appendix  A . Most were conducted in law enforcement settings (including police officers, prison guards, and traffic wardens; N  = 43), followed by healthcare (including physicians, frontline clinical staff, paramedics, and family carers; N  = 8) and transportation (railway ticket inspectors; N  = 1). There was a wide range of study designs, such as randomised control trials, pilot evaluations, and qualitative interviews; however, not all studies explicitly reported their chosen design.

Participants

BWC research is comprised of various units of analysis reported alongside participant population data. A total of 10 articles reported the number of cameras used in the study (7 in law enforcement, 2 in healthcare, 1 in public transportation). Participant figures are more commonly reported than number of BWCs due to frequent sharing of a limited number of cameras across entire departments. Across all studies, 46 reported a specific count of participants (6 in healthcare, 39 in law enforcement, 1 in public transportation). Other units of measurement reported in lieu of participants or number of cameras include shift patterns (Ariel et al . 2015 ), contacts or interactions with police (Young & Ready, 2016 ), geographic regions (Grossmith et al., 2015 ; Mitchell et al. 2018 ), caregiving pairs (Matthews et al . 2015 ), and physician consultations (Gupta et al . 2016 ).

BWC intervention

The model of camera used also varied widely across the studies. Police studies primarily used TASER cameras; however, 23 of these studies neglected to declare a model. One study (Ho et al . 2017 ) used TASER cameras in a healthcare setting with paramedics. However, Google Glass (4) and Calla (2) were most common in healthcare settings. There was also variability in protocol reporting. Only 17 out of 52 (32%) studies reported recording protocols, and these were primarily law enforcement. The practice of camera wearers verbally announcing recording varied and a range of visual warnings to alert others varied from audible sounds, flashing lights and activation of screens. Camera activation was either at staff discretion or mandatory for the duration of a shift.

Research quality

All studies were reviewed for selection, performance, attrition, detection, and publication bias. The JBI Critical Appraisal tool was utilised. Critical appraisal of the included studies was undertaken by three researchers (JE, UF, KW). No discrepancies were apparent. Individual scores attained from the tool were then collated to review bias across studies and assess quality. Overall, 30 out of the 52 studies included in this review were of poor quality, with a high risk of bias. Only five studies displayed low enough risk to be classified as good quality research. Quality assessment can be found in Appendix  A .

Funding and costs

A total of 19 studies reported funding sources. A further six studies did not receive funding, and the remaining 30 studies neglected to report on funding sources. Of the 19 reports of funding, 8 were funded by a federal government body (e.g., Bureau of Justice, Home Office, US Department of Justice), and 4 were funded by other government bodies such as local task force and police budgets. Five studies (Ariel et al . 2015 ; Ariel 2016b ; Ellis et al . 2019 ; Hardy et al . 2017 ; Mitchell et al . 2018 ) reported receiving camera equipment free of charge from the company. Overall, law enforcement studies account for 80% of studies with undeclared funding.

Three studies (Braga et al . 2018 ; Hardy et al . 2017 ; ODS Consulting 2011 ) report on the total costs of BWC implementation, including hardware, software, and training. On average, the cost per BWC was £1,750. However, none of the studies in this review included an economic analysis in which wider consideration of resource use, training costs, health benefits, and opportunity costs can be calculated and analysed.

Outcomes in transportation sector

Only one study examined the use of BWCs by staff at railway stations across England (Ariel et al . 2019 ). The results from this randomised controlled trial indicated a 47% reduction in odds of assaults against staff when wearing BWCs. This article positions BWCs as beneficial to employee health and safety by reducing rates of violence against staff.

Outcomes in law enforcement sector

Most studies included in this review were from law enforcement settings (43 out of 52). Twenty of those studies examined the impact of BWCs on one or more of the following outcomes (Table  1 ): police behaviour (use of force, arrest rates), citizen behaviour (complaints, assault against officers). Combinations of these four variables were the most frequently examined outcomes. Additionally, 12 studies examined both civilian and police opinions on BWCs. Other less frequently examined outcomes were court processes (Morrow et al . 2016 ; Owens et al . 2014 ), traffic stops (Peterson et al . 2018 ), stop and frisks (Young & Ready 2016 ), response time/time spent on scene (Wallace et al . 2018 ), camera activation (Roy 2014 ; Young & Ready 2016 ), and public reporting of crime (Ariel 2016a ).

Impact of BWC on police use of force, arrest rates, citizen complaints, and officer assaults

* p  < 0.05; ** p  < 0.01; *** p  < 0.001.

– Not measured.

Officer Behaviour

Two studies reported an increase in officer‐initiated contact (Wallace et al . 2018 ; Young & Ready 2016 ), and a third reported a decrease (Huff et al . 2020 ). Although (Young & Ready 2016 ) reported an increase in officer‐initiated contact, they also reported that officers were less likely to perform stop and frisks while wearing BWCs. However, BWCs were not found to impact response time or time spent on scene once contact was initiated (Wallace et al . 2018 ). Research also shows a mix of statistically significant increases (Braga et al . 2018 ; Huff et al . 2020 , Morrow et al . 2016 ) and decreases (Headley et al . 2017 ; Young & Ready 2016 ) in arrest rates, and one study reported no change at all (Wallace et al . 2018 ). No conclusions can be drawn about the impact of BWCs on officer‐initiated contact or arrest rates based on this literature.

Four studies reported significant decreases in police use of force resulting from BWC use (Ariel et al . 2015 ; Braga et al . 2018 , 2020 ; Groff 2020 ). Two further studies also reported a slight decrease in use of force but neglected to report the statistical significance of this change (Jennings et al . 2017 ; Rankin 2013 ). Additionally, one study reported a decrease in use of force rates only when controlling for compliant handcuffing (Henstock & Ariel 2017 ). However, (Huff et al. 2020 ) reported a small but significant increase in use of force following BWC activation. There appears to be a trend toward decreased use of force after implementing BWCs, but inconsistencies in methods and measures across the literature make it difficult to draw solid conclusions.

Officer opinions

When asked about BWCs, the ten studies examining police perspectives report mixed opinions. Some studies have found police officers believe the cameras are helpful and should be implemented (George & Meadows 2016 ; Pelfrey & Keener 2016 ; Ready & Young 2015 ), while others report neutral and negative leaning opinions (Hyatt et al . 2017 ). For example, officers in one study believed that BWCs enhance the quality of evidence, particularly in prosecuting domestic violence cases (Gaub et al . 2016 ). However, another study reported contradictory findings in which officer perspectives on BWC helpfulness for interpersonal violence prosecution was less favourable after BWC implementation (Morrow et al . 2016 ).

Qualitative studies examining police officer perspectives highlighted some of the perceived benefits of BWCs. One common belief was that BWCs can protect officers against citizen complaints:

You give the command, the dog pops off and comes back to you, and that’s captured on camera. I mean that’s gold to us. Later down the road if there is any civil litigation, it’s there. It’s captured for the argument that the dog stayed on too long. Canine Officer (Gaub et al. 2020 ) …don’t think they will create any problems for the officers although they may hold some officers to a higher standard of professionalism, will assist in stopping complaints about officers if they occur. Police officer (Makin 2016 )

Officer beliefs about the impact of BWCs on civilian behaviour were mixed. One study found that while some officers believed the cameras would benefit the officers, they did not believe the cameras would enhance officer safety or change civilian behaviour (Pelfrey & Keener 2016 ). This contradicts the results of another police survey in which officers reported beliefs that BWCs do change civilian behaviour (George & Meadows 2016 ). Similarly, a BWC pilot evaluation in the UK found that prison staff showed increased perceptions of safety after BWC implementation (Pope et al . 2020 ).

There have also been contradictory findings on whether police officers feel the implementation of BWCs has impacted their own behaviour. One qualitative study demonstrates possible positive behaviour changes resulting from BWC use:

This was a pretty straightforward situation. But when you know, you are having a bad day, or you are in an intense situation you know? I would normally maybe let a curse word fly. And we are not allowed to curse at citizens, but you know, we all do that from time to time. Now, I tend to watch myself a little more. Patrol officer (Koen et al. 2019 )

However, George and Meadows ( 2016 ) found that officers believed the cameras would improve the behaviour of their colleagues, but not their own.

These studies also highlighted perceived challenges and limitations to BWC use. Volume of calls, technical limitations of recording and battery capacity, and documentation procedures were all identified as problems (Gaub et al . 2020 ). Another concern raised by officers was that BWCs would be used as a tool to control and discipline the officers:

Regardless of statements used by management, the primary use of these videos will be to police the officers’ actions and to be used for disciplinary actions. Police officer (Makin 2016 )

In addition to concerns about BWCs being used to discipline officers, another officer raised a concern about officers manipulating footage:

Cameras have limited abilities and perceptions and could be used negatively by outside influences to create problems. How many times have you seen video where the clips were cut to create the perception someone wanted to portray, rather than the entire circumstance? Police officer (Makin 2016 )

Ultimately, officer opinions appear to be the most robust and widely researched aspect of BWC implementation in law enforcement. The opinions of officers vary widely, and qualitative research has captured this in detail.

Citizen behaviour

Rates of citizen complaints were frequently reported alongside police use of force and arrest rates. Despite being a measure of citizen activity, complaints are most frequently operationalised as a measure of officer behaviour. Ten studies reported decreases in citizen complaints; however, three of those studies neglected to report statistical significance of that decrease (Ellis et al . 2015 ; Jennings et al . 2017 ; Rankin 2013 ).

Methods for reporting changes in officer assaults varied across the five studies which examined this outcome. A pilot study of BWC use by a police force in Scotland reported a decrease in assaults with no statistics to support this statement (ODS Consulting 2011 ). Another study also reported a significant difference (Ariel et al . 2018 ), but this is contradicted by an earlier study which reported an increase in assaults against officers (Ariel et al . 2016 ). A further two studies reported no significant changes (Headley et al . 2017 ; Peterson et al . 2018 ). Additionally, one study reported assaults by comparing the frequency of change in assault rates per prison, rather than reporting specific changes in actual assault rates (Pope et al . 2020 ); therefore, this study cannot be directly compared to studies that reported figures for assaults. This study reports that prison sites with BWCs experienced fewer officer assaults after implementation; however, this was statistically insignificant. It is unclear from the existing literature whether BWCs have an impact on assaults against officers.

Citizen opinions

When asked how BWCs would impact police behaviour and outcomes, 99.4% of citizens surveyed in one study supported police use of BWCs. Citizens surveyed in this study also believed BWCs would improve the quality of police behaviour, increase lawfulness and transparency, and reduce corruption (Demir 2019 ). When BWCs were present in another quasi‐experimental study, citizens perceived the officer’s behaviour more positively, and ultimately perceived police as more legitimate (Demir et al . 2020 ). However, prisoner interviews conducted during a pilot evaluation of BWCs in UK prisons reported less favourable opinions about BWCs, and a perception that staff/prisoner relationships were negatively affected following implementation (Pope et al . 2020 ). Ultimately, prisoners felt less safe after BWC implementation and perceive the cameras as a violation of privacy:

It is another intrusion of the little privacy I had left. Prisoner (Pope et al . 2020 )

Like the concerns raised by police officers about officer manipulation of footage, prisoners also raised concerns about how staff are using the BWCs:

Body worn cameras are not being used as it should be. It is being used just to set up prisoners for nicking. Prisoner (Pope et al . 2020 )

While officer perspectives on BWCs have been researched in some depth, research on citizen and prisoner perspectives is far less robust.

Outcomes in healthcare sector

Five studies examined BWCs in emergency settings, including surgical consultations (Gupta et al . 2016 ), poisoning assessments (Skolnik et al . 2016 ), stroke assessment (Noorian et al . 2019 ), paramedic activity (Ho et al . 2017 ), and trauma triage (Broach et al . 2018 ). Findings indicate that diagnoses and assessments made with BWC technology are just as reliable as those made in‐person (Broach et al . 2018 ; Noorian et al . 2019 ; Skolnik et al. 2016 ). However, these studies are quasi‐experimental and observational in design, with small sample sizes (≤10). Therefore, individual preferences, practice patterns or policy decisions can impact selection criteria for participants and outcomes cannot be attributed to the intervention alone (Carlson & Morrison 2009 ).

Further, one study used medical simulation to evaluate the use of BWCs for documenting paramedic call outs. The purpose of using BWCs in this study was not to improve quality of care or safety; rather, it was specifically to improve staff documentation of paramedic activity. At present, current Emergency Medical Services documentation practices are usually taken from memory after the event. A simulation of an unconscious patient was played out by role players to investigate whether the accuracy of documentation could be improved by retrospectively watching BWC footage of the scene. Watching BWC footage after callouts resulted in 71 changes to documentation regarding missing or incorrect information from paramedic reports; the authors only report raw data and cannot comment on the relationship between the variables. This research presented BWCs as a solution to improve and streamline current ways of working. The technology shows potential for improving documentation, but this research base is still developing.

In addition to emergency assessment and documentation accuracy, qualitative findings highlighted the importance of streaming footage for dementia patients who face barriers in accessing healthcare:

I just think that it could help the doctors, because…they don’t want to come into the house… And that, honestly, was the biggest problem – she went for a year without seeing a doctor in the moderate to late‐stage Alzheimer’s range…But this could help in that way…if it was forwarded to the doctor’. Family caregiver (Matthews et al . 2015 )

Mental health

Only two studies included in this review examined the use of BWCs in mental health settings (Ellis et al . 2019 ; Hardy et al . 2017 ). Both studies reported on the use of BWCs in mental health settings, with one reporting from the north of England and one from the greater London area. The first (Hardy et al . 2017 ) was a feasibility study, which employed 12 cameras, provided free of charge by Calla, across five wards (two recovery, one low secure, one acute, and one intensive). This study reported an increase of verbal abuse and violence on three wards. A further two wards reported decreases in violence and low‐level restraint. However, two wards also reported increases in low‐level restraint. Finally, three wards reported a reduction in emergency restraint. It is important to note that these figures are only descriptive and have not been reported in relation to the type of ward. Therefore, it is not possible to make any claims about the impact of BWCs depending on level of ward security or admission type. [Correction added on 23 December 2021, after first online publication: the second sentence in the preceding paragraph has been amended and was originally “Both studies reported on the use of BWCs at the same NHS trust in the north of England.”]

Researchers also collected qualitative responses from staff and patients about their perspectives on the pros and cons of BWCs. Staff who wore cameras expressed positive perceptions:

‘I think it prevents lots of aggression and puts patients’ minds at ease knowing there is a record of what happened’. Staff member (Hardy et al . 2017 )

However, staff who did not wear cameras expressed more mixed opinions:

‘They cause more problems because the responding staff will only capture from the time of arrival hence does not give a clear picture of what has been happening prior to that’. Staff member (Hardy et al . 2017 )

Of the 57 patients surveyed, 68% felt the cameras would change staff behaviour and 63% felt it would change patient behaviour:

It may make staff more confident to approach and help distressed patients, it makes them feel safer at work so happier and more able to help patients. Patient (Hardy et al . 2017 )

However, some patients expressed less favourable perspectives:

It causes patients to be more irritable and angry when they think they are being observed. Patient (Hardy et al . 2017 )

The second study (Ellis et al . 2019 ) was a quasi‐experimental trial conducted two years after the feasibility study. This trial involved 50 cameras, again provided by Calla, across seven wards (two acute, one intensive, one forensic low secure, one medium secure, and two enhanced medium wards). This study reported on the context of each ward in more depth than the feasibility study, and also reported findings specific to the type of ward. The authors evaluated recorded incident data pre and post implementation of BWCs. Incidents were ranked by seriousness, ranging from 1 (verbal aggression) to 4 (restraint requiring tranquilising injection). Overall, a non‐significant decrease in incidents was reported, but a significant change in the seriousness of incidents across specific ward types was found. The two acute wards showed a significant increase in low level violence without restraint, and a decrease in incidents involving restraint with tranquilising injections. No difference was reported on the medium, intensive, or forensic wards. [Correction added on 23 December 2021, after first online publication: “at the same site” has been removed from “The second study.…feasibility study.” in the preceding paragraph]

Despite the low‐quality research and mixed findings, both studies report that BWCs are acceptable, beneficial, and effective tools in a mental health setting. It is important to note that both studies received cameras free of cost from the manufacturers, thus may be subject to bias. Ellis et al . ( 2019 ) provided a disclosure statement explaining that the lead author’s expenses were reimbursed by the camera company but maintained that the evaluation was conducted independently. Hardy et al . ( 2017 ) did not include a disclosure statement but did thank the camera company for providing cameras and training free of charge in the acknowledgements section of the article.

The primary objective of this review was to evaluate public sector use of BWCs in order to inform judgement about their suitability in mental health services. Results from this review highlight that BWCs are being implemented and utilised for different purposes across the public sector. In medical and emergency healthcare settings, BWCs tend to serve an explicitly therapeutic purpose by aiding in virtual assessments, diagnosis, and documentation. Similarly, in dementia care wearable cameras are being utilised for remote care and assessments to aid the safety of patients. The healthcare literature included in this review indicates that BWCs are successfully being used for telehealth purposes in a variety of contexts. Despite the apparent success of BWCs in medical healthcare settings and the growth of tele‐mental healthcare before and during the COVID‐19 pandemic (Barnett et al . 2021 ; Mishkind et al . 2021 ), there appears to be less research focussed on the potential therapeutic value of BWCs in mental health settings and much more on its role in law enforcement and prevention of violence.

This review found that mental health services are beginning to use BWCs similarly to the law enforcement sector’s use of this technology to document and deter aggressive incidents. The similarities between BWC use in mental health and police settings indicates that mental healthcare aligns more with the narrative of control and coercion prevalent in policing, rather than the arguably more patient‐centred approach found in physical healthcare. However, this distinction is not clear cut; reducing aggression and assaults in mental healthcare settings helps create a safer, calmer therapeutic environment that benefits patients, aids the wellbeing and retention of staff, and reassures families. The question remains as to whether BWCs are an effective and acceptable method of achieving that while maintaining parity of esteem between mental and physical healthcare (Panday 2016 ).

Research into the use of this technology in mental health settings remains in its infancy as evidenced by the limited number and quality of papers found within this review (Ellis et al . 2019 ; Hardy et al . 2017 ). These early pilot studies of BWCs in mental health settings present significant limitations due to low quality design, urging caution in drawing any conclusions around the impact on staff and service user behaviour.

While there does appear to be a trend toward decreased police use of force after implementing BWCs, this review found that there are inconsistencies in reporting methods and operational definitions making it difficult to draw solid conclusions based on this literature, and thus calling into question the applicability of such evidence to mental health settings. The review also indicates a reduction in complaints against police officers; however, the evidence fails to address whether BWCs result in fewer false accusations of police misconduct, or whether it deters officers from exercising illegitimate use of force. It is also unclear whether BWCs have an impact on citizen assaults against officers. Therefore, this review indicates there is no generalisable research supporting the use of BWC to reduce patient violence against staff, which is the main motivation for implementation in mental health settings (Hancock 2018 ). Despite the large evidence base examining BWC use in law enforcement settings, it is unclear if or how BWCs may enhance safety for either citizens or police officers. The heterogeneity of the samples, study settings, and cofounding factors also means to draw conclusions on the use of BWCs in a mental health setting based on law enforcement outcomes would be naïve.

It is important to recognise the different environments in which police officers and mental health staff work. Most of the research examining BWCs in law enforcement settings rely on patrol officers interacting with members of the public on the street. Mental health wards are enclosed spaces in which the wearer often has an ongoing relationship with the person they are recording. Mental health staff have a duty of care to vulnerable patients and reliance on building and sustaining therapeutic relationships is arguably not as relevant in public police–citizen interactions. Such differences may not only have a confounding influence on the nature and outcome of BWC use in mental health settings, but they may also lead to unintended consequences.

Based on the very limited evidence from mental health settings, BWCs may decrease high‐level incidents and increase low‐level incidents of aggression on inpatient wards. However, using BWCs to change patient behaviour raises questions around technological coercion (Morris 2021 ). While there is very little evidence to date on the impact of technological coercion on patient behaviour, coercive tactics that place environmental controls around patient behaviour have been linked to adverse outcomes. Research indicates that self‐harm rates on inpatient wards rise when patients feel the nurses are controlling them or limiting their freedom (James et al . 2012 ). Interviews with prisoners indicate that BWCs create feelings of powerlessness and intrusion (Pope et al . 2020 ), and similar sentiments are echoed by inpatient service users (Hardy et al . 2017 ).

If BWCs do reduce patient violence in inpatient mental health settings, they could potentially allow mental health staff to engage in more directed therapeutic work with the knowledge that they are less likely to require strong coercive techniques, such as seclusion or restraint (Stewart et al . 2010 ). However, even well intentioned safety measures such as door‐locking can create feelings of imprisonment and resentment which impair attempts at creating a therapeutic environment (Muir‐Cochrane et al . 2012 ). It is important for researchers, policy makers, healthcare professionals, and indeed patients themselves, to ask whether technological coercion is better for patients than the evidence‐based measures already available, such as the well‐established Safewards model (Bowers 2014 ).

Discussions around the risk of BWCs exacerbating symptoms and compromising care in mental health settings have begun to emerge (Olive 2019 ; Royal College of Nursing 2018a ), but there is a considerable lack of research into patient perspectives on BWCs. While officer perspectives on BWCs have been researched in some depth, research on citizen and prisoner perspectives is far less robust and consequently policy makers must acknowledge the bias in the current evidence base when considering the implications for mental health services.

Limitations & future directions

This review is the largest, and only, study of its type to date. The synthesis of evidence across the public sector has provided a wide overview of the uses and effects of BWCs and examines the minimal evidence for the use of this technology in a mental health setting. This review has identified poor methodological rigour in the current BWC evidence base and a lack of generalisability to mental health settings. Future research must explicitly examine the impact of BWCs in mental health settings, taking both patient and staff perspectives into account. There is also need for a wider consideration of the consequences of using such technologies and the consequences of implementing significant healthcare intervention within the NHS without prior rigorous research. Specifically, the lack of financial analysis is an imperative next step for researchers to address in order to establish whether BWCs will provide a cost‐effective use of funding to improve mental health service delivery.

This review only included studies with public services actively utilising BWC technology. During the initial screening process, it was evident that many studies examined BWCs beyond the scope of this review. For example, several law enforcement studies which did not meet the inclusion criteria for this review relied on archival footage, which may provide a different insight into BWC outcomes in police settings. As the evidence base grows and follow‐up periods increase, it will be beneficial for researchers to compare pre/post data and consider possible therapeutic outcomes and unintended consequences in more depth. Additionally, future research into BWCs in mental health settings should prioritise co‐production and patient involvement, as this review highlighted a notable lack of consideration for patient and citizen perspectives in research.

This review established that there is a poor evidence base for the use of BWCs in public sector services. BWCs in law enforcement is a well‐established practice with limited empirical support, and the increase in the use of this technology across other public services, such as healthcare, is still under‐researched. The use of poor‐quality law enforcement data to support the application of this technology in mental healthcare settings raises concerns around power and coercion in mental health nursing. This review highlights questions around the positive and negative impacts of BWCs in inpatient mental health settings have yet to be answered.

RELEVANCE FOR CLINICAL PRACTICE

BWCs are actively being rolled out in mental health trusts across the UK without a substantial evidence base to support their use. With this growing implementation, it is surprising that there is such a dearth of research that considers patient voices. The current review highlights the need to explore the experiences and perspectives of patients, mental health staff, and senior management to better understand the motivations, concerns, barriers, impact, and unintended/adverse consequences of BWC use in mental health settings. This research will help the mental health sector gain a greater understanding of this complex issue to better inform policies and practice.

Funding information

No external funding.

Acknowledgements

All authors have read and approved the manuscript. Authors KW, JE, and UF conducted the searches and data extraction. ME also assisted with data extraction. JE drafted the initial paper, and KW revised it for submission. AS resolved any disputes. All authors contributed to editing.

Appendix A. Summary of studies included in review

Declaration of Conflict of interest : None.

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Body Worn Cameras

Recent use-of-force events have led law enforcement agencies, citizens, civil rights groups, and city councils to push for the rapid adoption of body-worn camera (BWC) technology. Within less than a decade, BWCs have transformed from a technology that received little attention by many police leaders and scholars to one that has become rapidly prioritized, funded, and diffused into local policing. Below are the reports on this subject by faculty from the Center for Evidence-Based Crime Policy.

Lum, C., Koper, C.S., Wilson, D.B., et al. (2020). Body‐worn cameras’ effects on police officers and citizen behavior: A systematic review.  This is the most up-to-date meta-analysis and systematic review on experimental and quasi-experimental evaluations of the impacts of body worn cameras on police and citizen behaviors.

Full Review Plain Language Summary December 1, 2020 Webinar on this systematic review

Lum, C., Stoltz, M., Koper, C., & Scherer, J.A. (2019). Research on body-worn cameras: What we know, what we need to know. Criminology & Public Policy, 18 (1), 93-118. This is the most comprehensive narrative review conducted on BWCs to date, covering over 70 studies. See the press release for this study here. 

L. Merola, C. Lum, C.S. Koper, and A. Scherer (2016). Body Worn Cameras and the Courts: A National Survey of State Prosecutors.   This report by Merola et al. for the Laura and John Arnold Foundation documents a national survey of state prosecutors regarding their views on Body Worn Cameras.

C. Lum, C.S. Koper, L. Merola, A. Scherer and A. Rieoux (2015). Existing and Ongoing Body Worn Camera Research: Knowledge Gaps and Opportunities.  This report by Lum et al. for the Laura and John Arnold Foundation documents all existing AND ongoing research on BWC as of December 2015. Research questions for each of the 42 studies found are categorized and mapped, identifying areas where more research is needed.  Note: This research assessment will be updated periodically on this site as new research is developed.

Additional Links and Announcements:

• Bureau of Justice Assistance’s  National Body Worn Camera Toolkit .
• National Institute of Justice’s  Body Worn Camera research portfolio .
• President Obama’s Task Force on 21st Century Policing .
• Michael White’s  first review  on BWCs in 2013.
• Realizing the Potential of Technology in Policing.  Final Report (Revised) to the National Institute of Justice (Koper, Lum, Willis et al., 2015).

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Criminal Justice Collaborative

Study: body-worn camera research shows drop in police use of force.

Cheryl Corley

Police officer David Moore is pictured wearing a body camera in Ipswich, Mass., on Dec. 1, 2020. The city was among 25 statewide awarded grants to purchase body-worn cameras for videotaping interactions with the public. A new study says the benefits to society and police departments outweigh the costs of the cameras. Boston Globe/Boston Globe via Getty Images hide caption

Police officer David Moore is pictured wearing a body camera in Ipswich, Mass., on Dec. 1, 2020. The city was among 25 statewide awarded grants to purchase body-worn cameras for videotaping interactions with the public. A new study says the benefits to society and police departments outweigh the costs of the cameras.

One of the most powerful examples of the significance of police body-worn cameras played out in a Minneapolis court room during the trial of Derek Chauvin, the former police officer convicted of murder and manslaughter in the killing of George Floyd. The video collected from the body worn cameras of the police officers involved in Floyd's arrest showed his death from a variety of angles and prosecution and defense attorneys used the video extensively as they argued the case.

Across the country, police departments are increasingly using body-worn cameras to better monitor what officers are doing out in the field with the hope that they will reduce the prevalence of misconduct and improve fairness in policing. Still, there's been a lot of uncertainty over whether the technology is actually helpful. In addition, local governments and police departments that have not integrated the technology as part of their policing practice often cite cost as a barrier.

America Reckons With Racial Injustice

Police bodycam video shows george floyd's distress during fatal arrest.

Now, in one of the latest studies about the equipment, a team of public safety experts and world economists say body-worn cameras are both beneficial and cost effective. They outline their reasoning in a research paper released recently by the University of Chicago Crime Lab and the Council on Criminal Justice's Task Force on Policing. The report is an update of a variety of studies of body-worn cameras and it also compares the cost of the technology to the dollar value of the benefits that may come as a result.

Professor Jens Ludwig, head of the Crime Lab, says the findings show the key benefit of body-worn cameras is the reduced use of police force. For example, among the police departments studied, complaints against police dropped by 17% and the use of force by police, during fatal and non-fatal encounters, fell by nearly 10%.

"That's hopeful but not a panacea," Ludwig says. "Body-worn cameras are a useful part of the response but not a solution by themselves. Body-worn cameras are not going to solve the problem of the enormous gap we see in police use of force in the U.S. against Black versus white Americans. "

Even so, New York University Professor Morgan Williams Jr. says "integrating the technology into policing practices can be an important step towards making policing fairer and more accountable."

Live Updates: Protests For Racial Justice

Police bodycam transcripts: george floyd pleaded 20 times that he couldn't breathe.

In 2013, about a third of local law enforcement agencies, used some form of body-worn camera technology. By 2016, the number had grown to nearly 50%. While law enforcement often cites finances as a barrier to adopting body-worn cameras, the researchers say the benefits to society and police departments outweigh the costs of the cameras.

The pricetag for police bodycams can be several thousands of dollars per officer since costs include purchasing and maintaining the equipment, paying for storing the enormous amount of information the cameras can collect, and training officers. On the other hand, the study asserts that the dollar value of body-worn camera benefits — the estimated savings generated by a reduction of citizen complaints and averted use of force incidents — along with the cost reductions that could come from fewer investigations, is significant. The study estimates the ratio of the value of the benefits compared to the cost of body-worn cameras at 5 to 1 and well above an estimated 2 to 1 cost-benefit of hiring more police.

"If you are a local government looking at adopting the cost, from your narrow green eyeshade bottom line, the technology probably pays for itself," Ludwig says. "And the benefits to the public are a huge win and easily outweigh the cost."

The study notes, however, that the research developed so far about body-worn cameras is limited since results are based on data from police departments that were the first to adopt the new technology. It could also be, says Ludwig, that body-worn cameras and the impact they have on policing will be different as people figure out better ways to use the technology.

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Body-Worn Cameras and Adjudication of Citizen Complaints of Police Misconduct

Police body-worn cameras (BWCs) have been the subject of much research on how the technology’s enhanced documentation of police/citizen interactions impact police behavior. Less attention has been paid to how BWC recordings affect the adjudication of citizen complaints against the police. We employ citizen complaint data from the Chicago Police Department and Civilian Office of Police Accountability filed between 2012-2020 to determine the extent to which BWC footage enhances the efficacy of evidence used to formulate a conclusion of responsibility, and whether bias against complainants based on race would subsequently be reduced. Accordingly, we exploit the staggered deployment of BWCs across 22 Chicago police districts over time to estimate the effect of BWCs on these outcomes. Our findings indicate that BWCs led to a significant decrease in the dismissal of investigations due to insufficient evidence ("not sustained") as well as a significant increase in disciplinary actions against police officers ("sustained" outcomes”) with sufficient evidence to sanction their misconduct. We further find that disparities in complaints across racial groups for the “unsustained” category fade away with the implementation of BWCs.

Kathryn Johnson provided excellent research assistance. The views expressed herein are those of the authors and do not necessarily reflect the views of the National Bureau of Economic Research.

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Body-Worn Cameras in Policing: Benefits and Costs

University of Chicago, Becker Friedman Institute for Economics Working Paper No. 2021-38

32 Pages Posted: 6 Apr 2021

Morgan Williams

New york university (nyu) - new york university, nathan weil.

University of Chicago Crime Lab

Elizabeth Rasich

University of chicago, jens ludwig.

Georgetown University - Public Policy Institute (GPPI); National Bureau of Economic Research (NBER); IZA Institute of Labor Economics

Sophia Egrari

Date Written: March 28, 2021

Body-worn cameras (BWCs) are an increasingly common tool for police oversight, accountability, and transparency, yet there remains uncertainty about their impacts on policing outcomes. This paper reviews what we know about the benefits of BWCs and how those benefits compare to the costs of this new technology. We make two contributions relative to existing research. First, we update prior meta-analyses of studies of the impacts of BWCs on policing outcomes to incorporate the most recent, and largest, studies carried out to date in this literature. This additional information provides additional support for the idea that cameras may affect a number of policing outcomes that are important from a social welfare perspective, particularly police use of force. Second, we carry out a benefit-cost analysis of BWCs, as financial barriers are often cited as a key impediment to adoption by police departments. Our baseline estimate for the benefit-cost ratio of BWCs is 4.95. Perhaps as much as one-quarter of the estimated benefits accrue to government budgets directly, which suggests the possibility that this technology could, from the narrow perspective of government budgets, even pay for itself.

JEL Classification: H0,K42

Suggested Citation: Suggested Citation

University of Chicago Crime Lab ( email )

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National Bureau of Economic Research (NBER)

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Global Body-Worn Camera Market Size, Share, And COVID-19 Impact Analysis, By Resolution (Full HD, HD, 4K, Others), By Operation (Recording Type, Live Streaming & Recording), By End-User (Law Enforcement, Military, Transportation, Sports & Leisure, Others), and By Region (North America, Europe, Asia-Pacific, Latin America, Middle East, and Africa), Analysis and Forecast 2023 - 2033.

Global Body-Worn Camera Market Insights Forecasts to 2033

• The Global Body-Worn Camera Market Size was Valued at USD 7.48 Billion in 2023
• The Market Size is Growing at a CAGR of 13.97% from 2023 to 2033
• The Worldwide Body-Worn Camera Market Size is Expected to Reach USD 27.65 Billion by 2033
• Asia Pacific is Expected to Grow the fastest during the forecast period.

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The Global Body-Worn Camera Market Size is Anticipated to Exceed USD 27.65 Billion by 2033, Growing at a CAGR of 13.97% from 2023 to 2033.

Market Overview

Body-worn cameras, or BWCs are small devices that capture exchanges among law enforcement officials and individuals of the general public, suspects, and victims. These gadgets have become increasingly popular nowadays for encouraging transparency and accountability in law enforcement. The technology comprises a camera worn on the officer's uniform and if necessary on the shoulder lapel, sunglasses, or hat with a forward-facing vision. The video and audio recordings from BWCs exhibit transparency in the communities, seized comments, observations,  behaviors, and extra evidence which restricts unprofessional, unlawful, and flawed conduct by using both law enforcement and the public. Apart from policing these devices find their application in various sectors like healthcare services, transportation, and construction sites. As per the data provided by the University of Chicago Crime Lab, the use of body-worn cameras has reduced the use of force by police officers to 10%, and civilian complaints against law enforcement by over 15%.

Report Coverage

This research report categorizes the market for the global body-worn camera market based on various segments and regions forecasts revenue growth and analyzes trends in each submarket. The report analyses the key growth drivers, opportunities, and challenges influencing the global body-worn camera market. Recent market developments and competitive strategies such as expansion, product launch, and development, partnership, merger, and acquisition have been included to draw the competitive landscape in the market. The report strategically identifies and profiles the key market players and analyses their core competencies in each sub-segment of the global body-worn camera market.

Global Body-Worn Camera Market Report Coverage

Driving Factors

BWCs aid in the proper documentation of events by giving an unbiased, real-time file of interactions between officials and the public which is vital in investigations and legal processes. The presence of a camera often encourages improved behavior from both cops and residents, probably reducing the rate of misbehavior or fake accusations. Additionally, BWCs are useful coaching equipment that allows organizations to watch films and make improvements to procedures and guidelines. Furthermore, the deployment of BWCs can boost community trust by assuring the public that law enforcement acts are being recorded and can be reviewed. These devices serve to police transparency which provides a fair and responsible legal system.

Restraining Factors

Body-worn cameras (BWCs) have numerous drawbacks. The invasion of privacy for both civilians and police is a serious concern, particularly in sensitive circumstances like the inner of the houses or interacting with susceptible populations. The massive volumes of data produced by way of BWCs are tough to manage and store considering that they require long-term storage which comes with expensive price tags. Furthermore, the way that video is interpreted can be arbitrary, which leads to miscommunications. There may be a threat that the film from the cameras can be edited or used selectively, which would erode public confidence in the device.

• Market Segmentation

The global body-worn camera market share is classified into resolution, operation, and end-user.

• The full HD segment is expected to hold the largest share of the global body-worn camera market during the forecast period .   

Based on the resolution, the global body-worn camera market is divided into full HD, HD, 4K, and Others. Among these, the full HD segment is expected to hold the largest share of the global body-worn camera market during the forecast period. Due, to the clear footage representation these body-worn camera provides and they are considered as cost-effective as compared to the 4k camera counterpart. Also, their increased availability in e-commerce and other offline shopping stores contributes to the segment’s growth.

• The live streaming & recording segment is expected to grow at the fastest CAGR in the global body-worn camera market during the forecast period.    

Based on the operation, the global body-worn camera market is divided into recording type, and live streaming & recording. Among these, the live streaming & recording segment is expected to grow at the fastest CAGR in the global body-worn camera market during the forecast period. This segment expansion is primarily driven by the growing need for real-time situational awareness and the ability to rapidly respond in sectors like law enforcement, military, and emergency operations. Live streaming provides command center or observer capabilities to monitor events as they unfold, providing important support for high-risk operations. The ability to view live images improves performance and decision-making in dynamic situations, making it a highly desirable feature. As technology advances and demand for instant on-site content increases, the live streaming & recording industry is expected to grow faster than the traditional recording-only segment.

• The transportation segment is expected to grow at the fastest CAGR in the global body-worn camera market during the forecast period.    

Based on the end-user, the global body-worn camera market is divided into law enforcement, military, transportation, sports & leisure, and others. Among these, the transportation segment is expected to grow at the fastest CAGR in the global body-worn camera market during the forecast period. As urbanization grows and public transportation networks widen, there's a growing need for improved security on trains, buses, and different modes of public transit. Body-worn cameras offer a method of surveillance and recording interactions in numerous settings, which can be used to assure responsibility, resolve safety problems, and discourage criminal activity. Furthermore, the developing emphasis on passenger protection and preventing events like fare evasion or assaults is using BWCs in this market. The growing public safety and security in the transit system in conjunction with developments in camera technology, dictates the rise of the segment.

Regional Segment Analysis of the Global Body-Worn Camera Market

• North America (U.S., Canada, Mexico) 
• Europe (Germany, France, U.K., Italy, Spain, Rest of Europe)
• Asia-Pacific (China, Japan, India, Rest of APAC)
• South America (Brazil and the Rest of South America) 
• The Middle East and Africa (UAE, South Africa, Rest of MEA)

North America is anticipated to hold the largest share of the global body-worn camera market over the predicted timeframe.

North America is anticipated to hold the largest share of the global body-worn camera market over the predicted timeframe. This dominance comes from the significant use of body-worn cameras by police enforcement companies throughout the United States, wherein there's a substantial emphasis on improving openness, accountability, and public trust in policing. Furthermore, the US has led the way in technical improvements, with numerous companies developing and launching cutting-edge body-worn camera solutions that consist of live streaming, cloud storage, and extensive analytics. Government efforts, financial initiatives, and police reform guidelines all make contributions to the region's elevated use of BWCs.

Asia Pacific is expected to grow at the fastest pace in the global body-worn camera market during the forecast period. Several reasons contribute to this rapid enlargement, such as extended spending in public protection, growing protection concerns, and the massive deployment of advanced surveillance generation with the aid of law enforcement organizations throughout the region. Body-worn cameras are in high call for in China and India, where densely populated metropolitan areas require improved enforcement and public protection. Furthermore, accelerated focus of the benefits of BWCs in industries which includes private security, healthcare, and transportation adds to this trend.

Competitive Analysis:

The report offers the appropriate analysis of the key organizations/companies involved within the global body-worn camera market along with a comparative evaluation primarily based on their product offering, business overviews, geographic presence, enterprise strategies, segment market share, and SWOT analysis. The report also provides an elaborative analysis focusing on the current news and developments of the companies, which includes product development, innovations, joint ventures, partnerships, mergers & acquisitions, strategic alliances, and others. This allows for the evaluation of the overall competition within the market.

List of Key Companies

• Axon Enterprise, Inc.
• Motorola Solutions, Inc.
• Panasonic Corporation
• Digital Ally, Inc.
• Getac Technology Corporation
• Reveal Media Ltd.
• BodyWorn by Utility, Inc.
• GoPro, Inc.
• WatchGuard Video
• Coban Technologies, Inc.
• Pinnacle Response Ltd.
• PRO-VISION Video Systems
• Transcend Information, Inc.
• Wolfcom Enterprises

Key Target Audience

• Market Players
• Government Authorities 
• Consulting And Research Firm
• Venture capitalists
• Value-Added Resellers (VARs)

Recent Developments

• In April 2023, Axon launched the next generation body camera called as “Axon Body 4” which provides better quality footage along with real-time communications support.
• In November 2023 , Motorola solutions unveils the LTE-enabled V500 body camera that enables the responders to stream live video and loaction to the control room which gives quick and efficient response to the situation.

Market Segment

This study forecasts revenue at global, regional, and country levels from 2020 to 2033. Spherical Insights has segmented the global body-worn camera market based on the below-mentioned segments: 

Global Body-Worn Camera Market, By Resolution

Global Body-Worn Camera Market, By Operation

• Recording Type
• Live Streaming & Recording

Global Body-Worn Camera Market, By End-user

• Law Enforcement
• Transportation
• Sports & Leisure

Global Body-Worn Camera Market, Regional

• Rest of Europe
• South Korea
• Rest of Asia Pacific
• Rest of South America
• Saudi Arabia
• South Africa
• Rest of the Middle East & Africa

Frequently Asked Questions (FAQ)

• 1. Which are the key companies that are currently operating within the market? Axon Enterprise, Inc., Motorola Solutions, Inc., Panasonic Corporation, Digital Ally, Inc., Getac Technology Corporation, Reveal Media Ltd., BodyWorn by Utility, Inc., GoPro, Inc., WatchGuard Video, Coban Technologies, Inc., Safe Fleet, Pinnacle Response Ltd., PRO-VISION Video Systems, Transcend Information, Inc., Wolfcom Enterprises, and Others.
• 2. What is the size of the global body-worn camera market? The Global Body-Worn Camera Market is expected to grow from USD 7.48 Billion in 2023 to USD 27.65 Billion by 2033, at a CAGR of 13.97% during the forecast period 2023-2033.
• 3. Which region is holding the largest share of the market? North America is anticipated to hold the largest share of the global body-worn camera market over the predicted timeframe.
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