Abstract

By virtue of their ability to capture evidence of criminal behavior, body-worn cameras (BWCs) have been associated with enhanced investigations and prosecutions. To date, however, research on these outcomes has been inconsistent, and there has been no attempt to systematically review or synthesize the results of these studies. To address this gap, we conducted a systematic review and meta-analysis of 12 experimental and quasi-experimental studies examining the impact of BWCs on prosecutorial and court-related outcomes. In aggregate, we find no significant effects of BWCs across any reported outcome measure, however, we find that studies focused on domestic violence offenses are associated with significant and large treatment effects across most outcome measures. While these results show promise, extant domestic violence studies are generally quasi-experimental in nature, and thus the effect of crime type cannot currently be separated from that of research design. Policy implications and directions for future research are discussed.

摘要

凭借其捕捉犯罪行为证据的能力，随身摄像机 (BWC) 已与加强调查和起诉联系在一起。然而，迄今为止，对这些结果的研究并不一致，也没有尝试系统地回顾或综合这些研究的结果。为了解决这一差距，我们对 12 项实验性和准实验性研究进行了系统回顾和荟萃分析，探讨《生物武器公约》对检察和法院相关结果的影响。总的来说，我们发现生物武器公约对任何报告的结果指标都没有显着影响，但是，我们发现针对家庭暴力犯罪的研究与大多数结果指标中显着且巨大的治疗效果相关。虽然这些结果显示出希望，现有的家庭暴力研究一般都是准实验性质的，因此目前犯罪类型的影响不能与研究设计的影响分开。讨论了政策影响和未来研究方向。