We apply the microsynthetic control method to evaluate the gun violence prevention effect of gunshot detection technology (GDT) in Kansas City, MO. We measure the influence of GDT on process measures (ballistic evidence collection and gun recoveries) and outcome measures (shots fired calls for service, non-fatal shootings, fatal shootings, and aggravated assaults and robberies committed with a firearm). The GDT system was associated with higher levels of ballistic evidence collection in the GDT target area and surrounding catchment area, higher levels of gun recoveries in the surrounding catchment area, and lower levels of shots fired calls for service in the GDT target area. The GDT system did not influence any of the gun violence categories involving confirmed victims (non-fatal shootings, fatal shootings, and aggravated assaults and robberies committed with a firearm).

中文翻译：

---

枪击检测技术对密苏里州堪萨斯城枪支暴力的影响：微合成控制评估

我们应用微综合控制方法来评估密苏里州堪萨斯城枪击检测技术（GDT）的枪支暴力预防效果。我们衡量 GDT 对过程指标（弹道证据收集和枪支追回）和结果指标（开枪请求服务、非致命枪击、致命枪击以及使用枪支实施的严重袭击和抢劫）的影响。GDT 系统与 GDT 目标区域和周围集水区域的弹道证据收集水平较高、周围集水区域的枪支回收水平较高以及 GDT 目标区域的射击请求服务水平较低相关。GDT 系统不影响涉及已确认受害者的任何枪支暴力类别（非致命枪击、致命枪击以及使用枪支实施的严重袭击和抢劫）。