The current study analyzes the crime reduction effect of a police substation operating within a business improvement district in Newark, New Jersey. Synthetic control methods were used to create a control group that was statistically equivalent to the cumulative street units in the target area. Significant reductions of burglary and motor vehicle theft were observed in the target area as compared with a synthetic control area over the postintervention period. Robbery and theft from auto, conversely, suffered from spatial displacement. Of the six police actions included in the process evaluation, quality‐of‐life summonses and directed patrols increased in the postintervention period, whereas parking summonses significantly decreased.

中文翻译：

---

商业改善区内警察分站的犯罪控制效果：准实验综合控制评估

当前的研究分析了新泽西州纽瓦克市一个商业改善区内的一个警察分站的减少犯罪效果。使用了综合控制方法来创建一个对照组，该组在统计上等同于目标区域中的累积街道单位。与干预后的综合控制区相比，目标地区的盗窃和机动车盗窃现象明显减少。相反，汽车的抢劫和盗窃则遭受了空间位移。在过程评估中包括的六项警察行动中，生活质量传票和定向巡逻在干预后期间有所增加，而停车传票则显着下降。