Abstract：
Firearm violence has soared in American cities, but most states statutorily preempt municipal firearm regulation. This article describes a unique collaboration in Philadelphia among elected officials, public health researchers, and attorneys that has led to litigation based on original quantitative analyses and grounded in innovative constitutional theories and statutory interpretation.
摘要：
枪支暴力在美国城市飙升，但是大多数州在法律上优先于市政枪支法规。这篇文章描述了费城民选官员之间的独特合作，公共卫生研究人员，以及基于原始定量分析并以创新的宪法理论和法定解释为基础导致诉讼的律师。
