The analysis of the development of police dog programs in the modern era not only profiles successful programs but also analyzes why particular police dog programs were discontinued. Relevant legislation that has accompanied the evolution of police dog programs is also examined. Two chapters on the tasks performed by dogs consider tracking work, narcotics and explosives detection, and crowd control. A discussion of departmental planning for the use of dogs addresses the advantages and disadvantages of using dogs, jurisdictional characteristics to be considered in the use of dogs, and costs. Guidelines for program organization and operation cover dog and handler selection, training, and retraining; mandated minimum standards and certification; home kenneling and veterinary services; defining the mission and field operations; and program administration and records. Descriptions of dog programs in unusual places covers their use in prisons and jails, railroad facilities, subway and light-rail systems, colleges, and housing projects. One chapter reviews the history and current operation of police canine programs in Canada. 125-item bibliography, subject index.