The Criminal Investigation Command (CID) is the law enforcement agency that investigates crimes and assists military authorities in maintaining law and order. However, there are various synonyms for the Criminal Investigation Command. One such synonym is the Military Police Criminal Investigation Company. Additionally, the Counterintelligence and Criminal Investigation Command (CCIC) is another synonym for the CID, which focuses on counterintelligence activities and criminal investigations. Furthermore, the Navy Criminal Investigative Service (NCIS) is the Criminal Investigation Command of the US Navy. Other synonyms for the CID include the Army CID, Air Force OSI, and Naval Criminal Investigative Service. These synonyms are used interchangeably depending on the agency or branch of the military being referred to and the context of the situation.