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Research papers on Police body cameras

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  2. Language from police body camera footage shows racial disparities in officer respect

    Rob Voigt, Nicholas P. Camp, Vinodkumar Prabhakaran, et al. · 2017 · Proceedings of the National Academy of Sciences · 417 citations

    Using footage from body-worn cameras, we analyze the respectfulness of police officer language toward white and black community members during routine traffic stops. We develop computational linguistic methods that extract levels of respect automatically from transcripts, informed by a thin-slicing study of participant ratings of officer utterances. We find that officers speak with consistently less respect toward black versus white community members, even after controlling for the race of the officer, the severity of the infraction, the location of the stop, and the outcome of the stop. Such disparities in common, everyday interactions between police and the communities they serve have impo

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  3. Wearing body cameras increases assaults against officers and does not reduce police use of force: Results from a global multi-site experiment

    Barak Ariel, Alex Sutherland, Darren Henstock, et al. · 2016 · European Journal of Criminology · 219 citations

    Police use of force is at the forefront of public awareness in many countries. Body-worn videos (BWVs) have been proposed as a new way of reducing police use of force, as well as assaults against officers. To date, only a handful of peer-reviewed randomised trials have looked at the effectiveness of BWVs, primarily focusing on use of force and complaints. We sought to replicate these studies, adding assaults against police officers as an additional outcome. Using a prospective meta-analysis of multi-site, multi-national randomised controlled trials from 10 discrete tests with a total population of +2 million, and 2.2 million police officer-hours, we assess the effect of BWVs on the rates of

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  4. Body-Worn Cameras and Citizen Interactions with Police Officers: Estimating Plausible Effects Given Varying Compliance Levels

    E. C. Hedberg, Charles M. Katz, David Choate · 2016 · Justice Quarterly · 171 citations

    Recent citizen deaths involving police use of force have increased discussion surrounding police accountability and community relations. One piece of this discussion is the use of body worn cameras (BWCs) by officers. Unfortunately, little rigorous research has been conducted to estimate the effectiveness of BWCs in reducing problematic police-citizen interactions. In this paper, we estimate two measures of effectiveness of BWCs by comparing incidents that occur in a squad assigned cameras to incidents that occur in a squad assigned control. First, we estimate the effect of being assigned a BWC (but not necessarily using the camera) on reducing complaints and resistance associated with incid

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  5. Report: increases in police use of force in the presence of body-worn cameras are driven by officer discretion: a protocol-based subgroup analysis of ten randomized experiments

    Barak Ariel, Alex Sutherland, Darren Henstock, et al. · 2016 · Journal of Experimental Criminology · 168 citations

    Our multisite randomized controlled trial reported that police body-worn cameras (BWCs) had, on average, no effect on recorded incidents of police use of force. In some sites, rates of use of force decreased and in others increased. We wanted to understand these counter-intuitive findings and report pre-specified subgroup analyses related to officers’ discretion on activating the BWCs. Using pre-established criteria for experimental protocol breakdown in terms of treatment integrity, ten experimental sites were subgrouped into “high-compliance” (no officer discretion applied to when and where BWCs should be used; n = 3), “no-compliance” (treatment integrity failure in both treatment and cont

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  6. Community Perceptions of Police Body-Worn Cameras

    Matthew S. Crow, Jamie A. Snyder, Vaughn J. Crichlow, et al. · 2017 · Criminal Justice and Behavior · 133 citations

    Despite relatively little extant research, efforts to expand the use of body-worn cameras (BWCs) in policing are increasing. Although recent research suggests positive impacts of BWCs on reducing police use-of-force and citizen complaints, little is known about community members’ perceptions of BWCs. The current study examined perceptions of residents of two Florida counties and found a large majority of respondents supported the use of BWCs. Structural equation modeling was utilized to examine factors that influence views of BWCs. Findings indicate that positive perceptions of police performance and more police interaction were associated with greater perceived benefits of BWCs, whereas con

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  7. Police Body-Worn Cameras: Perceptions of Law Enforcement Leadership

    John Ortiz Smykla, Matthew S. Crow, Vaughn J. Crichlow, et al. · 2015 · American Journal of Criminal Justice · 125 citations

    Many people are enthusiastic about the potential benefits of police body-worn cameras (BWC). Despite this enthusiasm, however, there has been no research on law enforcement command staff perceptions of BWCs. Given the importance that law enforcement leadership plays in the decision to adopt and implement BWCs, it is necessary to assess their perceptions. This is the first study to measure law enforcement leadership attitudes toward BWCs. The study relies on data collected from surveys administered to command staff representing local, state and federal law enforcement agencies in a large southern county. Among the major perceptual findings are that command staff believe BWCs will impact polic

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  8. The Effects of Body-Worn Cameras on Police Activity and Police-Citizen Encounters: A Randomized Controlled Trial

    Anthony A. Braga, William H. Sousa, Jr. James R. Coldren, et al. · 2018 · bepress Legal Repository · 109 citations

    Many have suggested that placing body-worn cameras (BWCs) on police officers improves the civility of police-citizen encounters and enhances citizen perceptions of police transparency and legitimacy. In response, many police departments have adopted this technology to address public concerns over the quality of policing in their communities. The existing program evaluation evidence on the intended and unintended consequences of outfitting police officers with BWCs is still developing, however. This study reports the findings of a randomized controlled trial involving more than 400 police officers in Las Vegas, Nevada. We find that officers equipped with body-worn cameras generated fewer comp

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  9. Testing the effects of police body-worn cameras on use of force during arrests: A randomised controlled trial in a large British police force

    Darren Henstock, Barak Ariel · 2017 · European Journal of Criminology · 77 citations

    This study aims to assess the effect of body-worn cameras (BWCs) on police use of force, in a British police force context. We tested the effect of BWCs with a large British force in a six-month randomised controlled trial. Police shifts ( n = 430) were randomly assigned on a weekly basis into treatment and control conditions. Odds ratios of use-of-force rates per arrests were used to estimate the causal impact of BWCs. Analyses of these odds for overall use of force and again within pre-specified force categories were conducted. Overall, we found a 50 percent reduction in the odds of force used when BWCs are present compared with control conditions. Our estimates suggest a 35 percent reduct

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  11. Do the Effects of Police Body-Worn Cameras on Use of Force and Complaints Change Over Time? Results From a Panel Analysis in the Milwaukee Police Department

    Bryce E. Peterson, Daniel S. Lawrence · 2020 · Criminal Justice and Behavior · 22 citations

    Police body-worn cameras (BWCs) can help improve transparency, accountability, and policing behaviors. This study extends prior BWC research by using a panel analysis design with a measure of treatment duration to examine how the effects of BWCs change over time. Using data from the Milwaukee Police Department ( N = 1,009), we propose and test two competing hypotheses: The program maturity hypothesis suggests that BWCs will be more effective at reducing use of force and complaints over time, whereas the program fatigue hypothesis expects BWCs to be less effective the longer officers wear BWCs. We find that BWCs reduced complaints overall and that, over time, each additional month with a came

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  15. <scp>Body‐worn</scp> cameras and representation: What matters when evaluating police use of force?

    James E. Wright, Dongfang Gaozhao, Brittany Houston · 2024 · Public Administration Review · 2 citations

    AbstractPublic administration scholarship seeks to understand ways to increase accountability within the policing profession. We employ an online conjoint experiment to disentangle the effects of both representation and body‐worn cameras (BWC) on police accountability and legitimacy. In the experiment, we ask participants to rate the likelihood that a police use of force incident prompts an investigation when there is a BWC present and racial and gender representation matches between the officer and the civilian in the use of force incident. We find that Caucasian officers who use force are more likely to be investigated. Our findings also reveal that civilians believe male officers who use

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  16. Kamery nasobne a użycie siły w trakcie zatrzymania. Wyniki badań aktowych

    Zuzanna Ganczewska, Marta Prus · 2025 · Biuletyn Kryminologiczny · 1 citations

    In recent years, body-worn cameras have been increasingly adopted in the police departments. Their use is expected to help prevent both abuse of authority and the prevalence of aggression targeted against officers. They are also supposed to facilitate quality evidence gathering or reduce the number of unfounded complaints. However, the current state of knowledge on their effectiveness is inconclusive; there is also a lack of research on their use in Poland and other countries in the region. Within the framework of the research, a case file study was conducted, aiming at studying the potential of body-worn cameras in the context of arrest and aggressive behaviors of both officers and the arre

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  17. Impact of Body-worn Cameras (Bwcs) and Alternative Recording Devices (Ards) on Citizen Complaints and Use of Force Reports in the Police Force of Oriental Mindoro: a Basis for Policy Framework

    Raymond Mendoza · 2025 · International Journal For Multidisciplinary Research

    This study explored the impact of body-worn cameras (BWCs) and alternative recording devices (ARDs) on citizen complaints and use of force reports in the police force of Oriental Mindoro as a basis for the development of a policy framework. This study used a mixed method design by collecting complaint data before and after BWC use, then conducting interviews with police and community members to explain the results. It focused on selected barangays in Calapan City, Oriental Mindoro with high crime rates, using purposive sampling to choose 15 police officers and 15 community participants. Data were analyzed using basic statistics and thematic analysis, while ethical standards and confidentiali

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  18. Attitudes of police officers on the implementation of body worn cameras in the police of Serbia

    Dragan Milidragović, Nenad Milić, Miloš Stamenković · 2025 · Nauka bezbednost policija

    Police organizations in the United States were among the first to implement body-worn cameras more than a decade ago. Shortly thereafter, law enforcement agencies across Europe also started to adopt body-worn cameras as part of their operational practices. These devices have been widely regarded as effective tools for addressing specific challenges in policing and improving overall police performance. In line with global trends in modernizing policing practices, the Serbian police launched a pilot project for the implementation of body-worn cameras in September 2023. Prior to the initiation of this pilot phase, a research study was conducted to examine the attitudes and perceptions of police

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  19. THE IMPERATIVE OF REGULATING BODY-WORN CAMERAS FOR THE INDONESIAN POLICE FORCE

    Tantimin Tantimin, Abdurrakhman Alhakim · 2024 · Masalah-Masalah Hukum

    Despite global adoption, Indonesia's criminal justice system lags in utilizing body-worn cameras (BWCs), hindered by the absence of a regulatory framework. This disparity complicates efforts to curb police misconduct, ensure accountability, and protect individual rights. The study underscores the urgency of promoting transparency and rebuilding public trust in law enforcement. It identifies a disconnect between the conceptual need for BWCs and the lack of normative support in Indonesia. Key challenges include oversimplified data classification, inadequate mechanisms for handling biometric data, and a lenient police code of ethics on evidence management. These issues pose significant challeng

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