CID
n. uncountablen. Stands for Criminal Investigation Department. A special department in the British police that investigates serious crimes. You usually see this name in detective stories or news reports about major investigations.
n. Abbreviation for Criminal Investigation Department. The Criminal Investigation Department of a British police force, responsible for investigating serious or complex crimes. Often used without an article when referring to the department as an entity.
The detective works for the CID in London.
After the robbery was reported, officers from the CID arrived to collect forensic evidence and interview witnesses.
Although uniform officers were first on the scene, the complexity of the case required the immediate involvement of the CID to oversee the long-term investigation.
Typically used with the definite article ('the CID') or as a modifier ('a CID officer').