Rand兰德：2026年州枪支法数据库及其支持材料的开发报告（英文版）

The initial draft of the data set relied on information provided in the following three secondary sources: • “Evaluating Gun Policy: Effects on Crime and Violence,” by Jon S. Vernick and Lisa M. Hepburn (2003), which covers a subset of the state laws in Table 1 from 1979 to 1999 • the proprietary Firearm Legislation Dataset (FLD), which is compiled and maintained by the Giffords Law Center to Prevent Gun Violence and lists many types of firearm bills that have been considered by state legisla