Prioritizing calls and reducing services to the public have been the inevitable outcomes of such processes. As a result, the police have been increasingly forced to respond to their mandate in a reactive or incidentdriven fashion. This traditional reactive approach suffers, however, from the problem of limited impact. Such “fire brigade” policing is not preventive in nature, and despite the best efforts of most police departments, service demands tend to keep rising. What is needed is a different, more proactive approach (Couper & Lobitz, 1991; Kelling & Moore, 1988). This chapter illustrates how problem solving was applied in a problem neighborhood to address prostitution and related social issues that had become a major public safety challenge.