DC Body-Worn Camera Evaluation

Police officer body-worn cameras have been promoted as a technological solution to improve police-community interactions. DC police officers wear body-worn cameras as they have been useful for training, resolving citizen complaints, and providing transparency in individual interactions. But do they impact behavior in police-community interactions? Through an experiment with the Metropolitan Police Department (MPD), we found that body-worn cameras had no detectable effect on police use of force, citizen complaints, policing activity, or court outcomes.

警察佩戴式摄像头已被推崇为改善警民互动的技术解决方案。华盛顿特区的警察在执行职务时佩戴此类摄像头，因其对于培训、解决市民投诉以及确保个人互动的透明度具有显著效用。然而，这些摄像头是否会对警民互动中的行为产生影响？通过对大都会警察局（MPD）的实验研究，我们发现佩戴式摄像头对警察使用武力、市民投诉、警务活动或法庭判决结果均未产生可检测的影响。