Both those who study crime and those who fight it agree that crime is not spread evenly across city landscapes. Rather, clusters of crime-a few "hot spots"-host a vastly disproportionate amount of criminal activity. Even within the most crime-ridden neighborhoods, crime concentrates at a few locations while other areas remain relatively crime-free. So if police focus their limited resources at these problem places-a practice known as hot spots policing-they will be better positioned to lower citywide crime rates, and do it more efficiently. In Policing Problem Places, Anthony Braga and David Weisburd demonstrate that hot spots policing is a powerful and cost-effective approach to crime prevention. While putting police officers where crime happens most is an old and well-established idea, in practice it is often avoided or not properly implemented. Braga and Weisburd draw on rigorous scientific evidence to show how police officers should use problem-oriented policing and situational crime-prevention techniques to address the place dynamics, situations, and characteristics that cause a spot to be "hot." But the benefits of hot spots policing do not end with conserving public dollars and police resources. Illustrating how policing problem places can benefit police-community relations, especially in minority neighborhoods where residents have long suffered from high crime and poor police service, Braga and Weisburd show how police can make efforts to develop positive and collaborative relationships with residents and avoid the indiscriminant enforcement tactics that undermine the legitimacy of the police. A vital resource for police departments everywhere, Policing Problem Places offers a blueprint for rethinking what police should do and how they should do it.