CID is an independent federal law enforcement agency consisting of nearly 3,000 personnel assigned to 124 world-wide locations, responsible for felony criminal investigations and operations; war crimes and terrorism investigations, criminal intelligence collection and analysis; cybercrime investigations and operations; multi-dimensional forensic support; and protective service operations for the Secretary of Defense, Chairman of the Joint Chiefs of Staff and other high risk personnel.  

https://www.cid.army.mil/The-Agency/CID-Locations/#MD