Dr den Heyer is a mixed-methods researcher whose interests include police organizational reform and performance, police service delivery effectiveness, the police response to terrorism and the militarization of policing.

Ph.D. student with the School for the Future of Innovation in Society, studying the Human and Social Dimensions of Science & Technology. U.S. Army officer and Goodpaster Scholar with 15 years of active-duty service.

Haner's research focuses on terrorism and political violence.