From Jack’s online bio:
Jack Schafer,Ph.D. is a retired FBI Special Agent who is currently employed as an Assistant Professor at Western Illinois University. Dr. Schafer served as behavioral analyst assigned to FBI’s National Security Behavioral Analysis Program.
Author, with Marvin Karlins, of the newly released, The Like Switch. Dr. Schafer has also authored a book titled, Psychological Narrative Analysis: A Professional Method to Detect Deception in Written and Oral Communications.He co-authored a book titled, Advanced Interviewing Techniques: Proven strategies for Law Enforcement, Military, and security Personnel.
He has published numerous articles on a wide range of topics including the psychopathology of hate, ethics in law enforcement, detecting deception, and the universal principles of criminal behavior.
Dr. Schafer earned a Ph.D. in psychology from Fielding Graduate University, Santa Barbara, California. Dr. Schafer owns his own consulting company and lectures and consults in the United States and abroad.