Defense Criminal Investigative Service
The Defense Criminal Investigative Service (DCIS) is the criminal investigation arm of the United States Department of Defense Office of Inspector General. == Mission statement == The Defense Criminal Investigative Service (DCIS) investigates criminal activity that endangers military personnel, threatens national security, undermines military readiness, and diverts vital resources from the Department of Defense's core mission.
Source: Wikipedia — Defense Criminal Investigative Service (CC BY-SA 4.0)