Dr. John P. Sullivan served as a lieutenant with the Los Angeles Sheriff’s Department; specializing in emergency operations, transit policing, counterterrorism and intelligence. He is an Instructor in the Safe Communities Institute (SCI) at the Sol Price School of Public Policy - University of Southern California, Senior El Centro Fellow at Small Wars Journal, and Member of the Scientific Advisory Board of the Global Observatory of Transnational Criminal Networks. His doctoral dissertation at the Open University of Catalonia examined the impact of transnational crime on sovereignty. His current research focus is terrorism, transnational gangs and organized crime, conflict disaster, intelligence studies, post-conflict policing, sovereignty and urban operations.