The Defense Criminal Investigative Service
) is the criminal investigative arm of the Inspector General
of the United States Department of Defense
The mission of the DCIS
is to "protect America's Warfighters" by conducting investigations in support of crucial National Defense priorities.
Agents and investigators
DCIS criminal investigators are Special Agents
with full federal law enforcement authority; they carry firearms, investigate violations of U.S. law, execute search and arrest warrants, serve subpoenas, etc. DCIS Special Agents also investigate offenses under the Uniform Code of Military Justice
The DoD Inspector General is tasked by statute to "initiate, conduct, and supervise such … investigations in the Department of Defense (including the military departments) as the Inspector General considers appropriate" (IG Act §8(c)(2)) and to "give particular regard to the activities of the internal . . investigative units of the military departments with a view toward avoiding duplication and insuring effective coordination and cooperation" (IG Act §8(c)(9)).
The DCIS devotes investigative resources to a number of investigative programs including:
Federal law enforcement
Sister UCMJ military law enforcement agencies