School police liaison programs provide a means of effective communication that can be of significant value to the police department. Structured access provides the opportunity for informal dialogue. In addition, the visible presence of a police officer is a major deterrent to school crime and can enhance the image of law enforcement not only to students and staff but also to the community at large. Furthermore, youth who have positive experiences with police officers are likely to experience more significant emotional conflict when they contemplate criminal activity. The contact can also improve police attitudes and communication skills with juveniles. Schools benefit through positive effects on discipline, greater preparedness for major incidents, improvements in physical and psychological safety, and improved relations with the police. Finally, the program will benefit the community through improved crime prevention, reduced truancy, potential reduction in gang activity, and the cooperative efforts to provide the structure necessary for the positive emotional development of young people.