Michael Gelles

Dr. Michael Gelles is currently a Senior Manager with Deloitte Consulting, LLP Federal practice in Washington, DC, consulting in the areas of human capital management and systems and operations. Dr. Gelles is a thought leader in critical mission areas. He also leads projects in the areas of strategic planning, workforce planning and deployment, and leadership development that directly support mission related programs in several federal law enforcement agencies.

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 was a leader 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 degree 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 Center 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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