This study maps the current landscape of police-led pretrial diversion programs. It presents the results from a survey on diversion given to a representative sample of law enforcement agencies nationwide along with case studies of eight promising police-led programs, including programs targeting mentally-ill individuals, juveniles, and low-level or first-time adult defendants. Funded by the Community Oriented Policing Services (COPS) Office of the Department of Justice, this report explores why these programs were created, how they work, and where they differ.