This is the ideal book for GIS users in law enforcement who want to learn more about the technology or who wish to get started using GIS in their agency. Crime analysts, teachers, and students of criminal justice will also gain valuable insights into a suite of powerful technological tools ideally suited for crime mapping and analysis from this comprehensive volume. This book features chapters on implementation, data sharing, web-based GIS and database design written by experts and practitioners from law enforcement agencies and universities. Also included is a series of chapters detailing exactly how specific law enforcement agencies are using GIS and related technologies such as GPS and remote sensing to solve crimes, deploy resources, and gauge the effectiveness of crime prevention and community oriented policing initiatives.