Ahmet S. Yayla, Ph.D.
Ahmet S. Yayla, Ph.D. is co-author of the just released book, ISIS Defectors: Inside Stories of the Terrorist Caliphate. He is Adjunct Professor of Criminology, Law and Society at George Mason University. He formerly served as Professor and the Chair of the Sociology Department at Harran University in Turkey. He is the former Chief of Counterterrorism and Operations Division for the Turkish National Police with a 20‐year career interviewing terrorists.