ABSTRACT
This chapter describes the role of psychological factors and services in three specialized area of policing: hostage negotiation, undercover operations, and criminal investigation. Hostage negotiation has achieved iconic status in the world of popular drama. An important part of gathering evidence to prosecute serious crimes involves the skillful infiltration of criminal groups by specially trained officers. While the targets of undercover operations carried out by law enforcement agencies may vary-narcotics, money laundering, illegal immigration and terrorism. Serial murder investigation or child homicide forces the detective or investigating officer to confront stressors directly related to his or her projected image of unwavering strength and determination, ability to respond competently and dispassionately to crises, and willingness to place the needs and demands of the public above his or her personal feelings. Coping mechanisms common to all domains include intellectualization, expertise-enhancing activities, collegial support, professionalism, and opportunity for mental health services when required.
