A randomized control trial evaluating the effects of police body-worn cameras

被引：58

作者：

Yokum, David ^{[1
,2
]}

Ravishankar, Anita ^{[1
,3
,4
]}

Coppock, Alexander ^{[5
]}

机构：

[1] Execut Off Mayor, Off City Adm, Lab DC, Washington, DC 20004 USA

[2] Brown Univ, Policy Lab, Providence, RI 02912 USA

[3] Metropolitan Police Dept, Execut Off Chief Police, Washington, DC 20024 USA

[4] Univ Michigan, Publ Policy & Polit Sci Joint PhD Program, Ann Arbor, MI 48109 USA

[5] Yale Univ, Dept Polit Sci, New Haven, CT 06511 USA

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2019年 / 116卷 / 21期

关键词：

body-worn cameras; field experiments; policing; FORCE; INCREASES; CUES;

D O I：

10.1073/pnas.1814773116

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Police body-worn cameras (BWCs) have been widely promoted as a technological mechanism to improve policing and the perceived legitimacy of police and legal institutions, yet evidence of their effectiveness is limited. To estimate the effects of BWCs, we conducted a randomized controlled trial involving 2,224 Metropolitan Police Department officers in Washington, DC. Here we show that BWCs have very small and statistically insignificant effects on police use of force and civilian complaints, as well as other policing activities and judicial outcomes. These results suggest we should recalibrate our expectations of BWCs' ability to induce large-scale behavioral changes in policing, particularly in contexts similar to Washington, DC.

引用

页码：10329 / 10332

页数：4

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