Emergency Response agencies are increasingly responding to violent crimes, threats of terrorism as well as clandestine drug labs, explosives events, and crimes involving chemicals. Tactical operations at these events can expose responders to a wide range of hazards such as heavily armed criminals, booby traps, secondary devices, and a multitude of chemical and explosive hazards. The response to terrorism or a crime involving hazardous materials is a multi-agency response. This new text is designed for fire departments and law enforcement personnel who are trained to the Hazardous Materials Operations Level