What are the effects of wearable police cameras on perceptions of the police? In this study, we report causal estimates from a crossover randomized controlled trial in Uruguay on the effects of use of body-worn cameras by traffic police on the perceptions of legitimacy and satisfaction by drivers ticketed for traffic violations. We pay particular attention to the effects on procedural justice—that is, perceptions of the fairness of the interactions between officers and drivers—without neglecting other features of legitimacy (i.e., effectiveness, distributive justice, and lawfulness). With the exception of lawfulness, wearable surveillance apparatuses showed improvements across all dimensions of legitimacy compared to control conditions, with medium to large effect sizes. The overall satisfaction from the police-public interaction was significantly higher when officers used body-worn cameras. These findings suggest that wearable surveillance technology can lead to enhanced perceptions of legitimacy across multiple dimensions, not just increased efficiency, as well as the perceived overall quality of police-public interaction.

中文翻译：

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使用可穿戴技术提高乌拉圭警察的合法性：随身摄像机案例

可穿戴警用摄像机对警察的感知有何影响？在这项研究中，我们报告了乌拉圭一项交叉随机对照试验的因果估计，该试验研究了交警使用随身摄像头对因交通违规而被罚单的司机对合法性和满意度的感知的影响。我们特别关注对程序正义的影响——即对官员和司机之间互动公平的看法——而不忽视合法性的其他特征（即有效性、分配正义和合法性）。除了合法性之外，与控制条件相比，可穿戴监控设备在合法性的各个方面都显示出改进，影响大小为中到大。当警察使用随身携带的相机时，警察与公众互动的整体满意度显着提高。这些研究结果表明，可穿戴监控技术可以增强对多个维度的合法性感知，而不仅仅是提高效率，以及感知警民互动的整体质量。.