Many of our children live in communities where violence, fear, and despair are commonplace. This book describes how one city developed a collaborative effort between law-enforcement and mental health professionals in order to help these children and their families. The Child Development-Community Policing Program in New Haven, Connecticut, was initiated in 1991 to deal more effectively with children who are victims or perpetrators of violence. Police officers, preparing for the new responsibilities of community-based policing, have become familiar with an array of strategies for preventing and responding to community violence. Mental health professionals have learned firsthand about the texture and trauma of the lives of children at risk. Police and mental health professionals working together have been able to mobilize treatment services more quickly and effectively and to assure that treatment plans are carried out. This manual provides a model, case studies, and guidelines for training the participants, operating a consultation service, and evaluating the program on an ongoing basis, all of which will be useful for other communities seeking to implement a similar project.