This book describes the people, processes, and technologies needed to extract actionable intelligence from the inside, and outside, of crime guns.

Could a data-driven, problem-solving approach yield new interventions to disrupt local, illegal gun markets serving criminals, gang members, and juveniles in Los Angeles? Law enforcement can analyze patterns in crime-gun data to trace illicit firearm acquisition, use community-based interventions to stem the illegal flow, and use retail ammunition-purchase records in identifying prohibited firearm possessors.