International Handbook of Threat Assessment

Private Investigating Study Guide: Private Investigator Training Handbook and Practice Exam Questions [3rd Edition]

Interviewing and Interrogation for Law Enforcement

Under and Alone: The True Story of the Undercover Agent Who Infiltrated America's Most Violent Outlaw Motorcycle Gang

You Don’t Know Us Negroes and Other Essays

The Presidents and the People: Five Leaders Who Threatened Democracy and the Citizens Who Fought to Defend It

K9 Personal Protection: A Manual for Training Reliable Protection Dogs (K9 Professional Training Series)

The Highest Law in the Land: How the Unchecked Power of Sheriffs Threatens Democracy

Bulletproof: The Truth about the Assassination Attempts on Donald Trump

Police Equipment