John R. Schafer
John R. Schafer has written at least 3 books. Their most popular book is Advanced Interviewing Techniques: Proven Strategies for Law Enforcement, Military, and Security Personnel with 1 save with an average rating of 3⭐.
John R. Schafer has written at least 3 books. Their most popular book is Advanced Interviewing Techniques: Proven Strategies for Law Enforcement, Military, and Security Personnel with 1 save with an average rating of 3⭐.