Michael Gelles

Dr. Michael Gelles is currently a director with Deloitte Consulting LLP’s Federal practice in Washington, D.C., consulting in the areas of human capital management and systems and operations.

Previously, he was the chief psychologist for the Naval Criminal Investigative Service (NCIS) for more than 16 years. In that capacity, he assisted the NCIS and a multitude of other federal, state and local law enforcement agencies with criminal, counterintelligence and counterterrorism investigations and operations. He was the lead psychologist for the behavioral consultation team for the Criminal Investigations Task Force, and a member of numerous other task forces in the areas of workplace violence, insider threat and ethics in consultation to national security. Prior to joining the NCIS in 1990, Dr. Gelles served as a clinical psychologist for the U.S. Navy.

He is active in a number of professional organizations, including the American Psychological Association Division of Police Psychology, the International Association of Chiefs of Police, the Psychology Services Section, the Society of Police and Criminal Psychology, and the Association of Threat Assessment Professionals. Dr. Gelles is also a frequent lecturer and has published numerous professional papers on topics related to organizational management in operational settings, forensic psychology, law enforcement, terrorism and counterintelligence.

Dr. Gelles received his Bachelor of Arts from the University of Delaware and his master’s and doctorate degrees in psychology from Yeshiva University in New York. He completed his clinical and forensic training at the National Naval Medical School and his advanced training at the Washington School of Psychiatry. He held academic appointments in psychiatry at the Uniformed Services University of the Health Sciences and at the Washington School of Psychiatry.

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