- The Lawmen: United States Marshals and Their Deputies, 1789-1989
- Threat Assessment and Management Strategies: Identifying the Howlers and Hunters
- Contemporary Threat Management: A Practical Guide for Identifying, Assessing, and Managing Individuals of Violent Intent
- The Trainers: The Federal Law Enforcement Training Center and the Professionalization of Federal Law Enforcement
- Concepts and Case Studies in Threat Management