This report provides the world’s first systematic review of criminal justice responses to child sexual abuse material (CSAM) offending.

Drawing on the Global Policing Database (GPD), this review assesses the impact of supplier arrests and seizures on drug crime, drug use, drug price, drug purity and drug harm outcomes.

This updated review uses the Global Policing Database (GPD) to capture evaluations of the impact of street-level law enforcement interventions on drug crime and drug-related calls-for-service. The GPD is an online searchable database designed to capture all published and unpublished experimental and quasi-experimental impact evaluations of policing interventions conducted since 1950.

Police use a variety of techniques in their investigation of serious violent crimes, such as homicide, robbery, assault and sexual assault. This paper systematically reviews experimental and quasi-experimental research on the effectiveness of these investigative techniques.