Objectives

This study evaluated a micro hot spot (MHS) program developed based entirely on the chief executive’s professional exposure to hot spot policing tactics. It considers the informal stage followed by a formal stage in program development and implementation.

Methods

To examine the MHS program on gun violence, the study executes multiple interrupted time series analyses using Poisson or negative binomial regression to model count data with a non-normal distribution. Weekly crime and calls for service data are analyzed at the city level.

Results

We report a significant decrease in the level of calls for service involving non-fatal shootings, compared to the pre-intervention level. Further, the decreasing trend became steeper in the post-MHS program period. There is also evidence of decreases in both the level and trend of gun homicides in the post-intervention period.

Conclusions

The study provides insight to police departments with basic evidence-based knowledge that attempts to address gun violence in a timely manner.

中文翻译：

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热点警务分两个阶段：布法罗的非正式和正式计划

目标

这项研究评估了完全基于首席执行官对热点警务策略的专业接触而开发的微热点（MHS）计划。它考虑了计划制定和实施过程中的非正式阶段和随后的正式阶段。

方法

为了检查 MHS 关于枪支暴力的计划，该研究使用泊松或负二项式回归执行多个中断时间序列分析，以对非正态分布的计数数据进行建模。在城市层面分析每周的犯罪和服务请求数据。

结果

我们报告称，与干预前的水平相比，涉及非致命枪击事件的服务呼叫数量显着下降。此外，在 MHS 计划结束后，下降趋势变得更加陡峭。还有证据表明，干预后时期枪支凶杀案的数量和趋势均有所下降。

结论

该研究为警察部门提供了基于证据的基本知识的见解，试图及时解决枪支暴力问题。