The Department of the Army Criminal Investigation Division (CID, DACID), previously known as the United States Army Criminal Investigation Command (USACIDC) is the primary federal law enforcement agency of the United States Department of the Army.
Its primary function is to investigate felony crimes and serious violations of military law & the United States Code within the US Army.
The division is an independent federal law enforcement agency with investigative autonomy.
On 17 September 1971 the United States Army Criminal Investigation Command was established as a major Army command, vested with command and control of all CID activities and resources worldwide.
September 2021, the 50th anniversary of the establishment of the agency, the Criminal Investigation Command was being renamed the Criminal Investigation Division.