Disrupting Gun Transfers, Los Angeles, California, 2014-2015

The data was used to provide estimates of the effects of a Los Angeles letter program on citywide levels of homicide, robbery, and aggravated assault with a firearm. This study will provide the city of Los Angeles and other jurisdictions in California (and beyond) with information on the impact and cost-effectiveness of an innovative gun letter program. This project involves the following: statistical analysis of gun-level data to assess program impact on reporting guns lost or stolen, statistical analysis to evaluate the impact of the program on city-level crimes involving a firearm, and assessment of program costs.