The research revolution in police work has uncovered a multitude of data, but this contemporary knowledge has done very little to change the way things are done in most police departments across the U.S., where the prevalent form of policing is based on the traditional model of district assignments and random preventive patrol. Drawn from the work of scholars on the cutting edge of police research, this volume argues for a radical shift in the way policing is approached. It provides concrete recommendations for the fundamental reorganization of the policing institution and presents a comprehensive planning regimen for urban problems that encompasses security, urban reinvestment, and public planning.