FBI : Inside the World's Most Powerful Law Enforcement Agency by Ronald...

The FBI : Inside the World's Most Powerful Law Enforcement Agency

Defensive Tactics, Manual For Law Enforcement Officers Jan. 1970, FBI

Stalling for Time : My Life As an FBI Hostage Negotiator by Gary Noesner (2010,

Different Badges, Different Worlds: Exploring Law Enforcement Agency Values w...

U. S. Marshals : Inside America's Most Storied Law Enforcement…First Edition

The FBI and Law Enforcement Agencies of the United States (American Governme...