Teaches the proper and proven methods of communicating silently when lives hang in the balance Packed with revolutionary, easy to remember visual and auditory signaling techniques for communicating between all types of public safety, security and education professionals and enhances Homeland Security through communications interoperability Provides a standard protocol for primary, secondary and tertiary means of communication that builds a team response that saves lives Hundreds of photographs, illustrations and charts Includes a FREE credit card size, stainless steel signaling mirror 160 pg. Field Manual