The Threat Management Unit (TMU) was established to provide criminal and behavioral analysis and risk assessments for NCIS investigations in an attempt to review, and ultimately mitigate, the potential for violence. The TMU is a multidisciplinary support team made up of special agents, staff psychologists, analysts and others. Investigative analysis provided by the TMU includes violence risk assessments, interview and interrogation strategies, and management plans.

The TMU helps to identify risk factors, patterns of escalation, and to construct an environment that inhibits or prevents violence. The services provided by the TMU cover a wide range of topics, including, but not limited to terrorism, school violence, sexual crimes, stalking, cyber crimes (cyber stalking), domestic violence, arson, sabotage, communicated threats, insider threats and pre-attack behavior.