The head of the CID in most police forces is a Detective Chief Superintendent.
These ranks are common to most forces.
- Detective Constable (DC or Det Con)
- Detective Sergeant (DS or Det Sgt)
- Detective Inspector (DI or Det Insp)
- Detective Chief Inspector (DCI or Det Ch Insp)
- Detective Superintendent (DSI or Det Supt)
- Detective Chief Superintendent (DCS or Det Ch Supt)
Members of the Criminal Investigation Department (CID) up to and including the rank of Chief Superintendent prefix their ranks with 'Detective'.
Other departments, such as Special Branch and Child Protection, award non-detectives 'Branch Detective' status, allowing them to use the 'Detective' prefix.
Detective ranks are abbreviated as DC, DS, DI, etc, and are equivalent in rank to their uniform counterparts.
Special Investigations Branch
Although the British Armed Forces Military Police have an investigations department, it is not called "CID".
All three service police forces operate Special Investigation Branches (SIB) which fulfill much the same role as the civilian CID.
The Army Fridge has regular Sections and one Territorial Army Section made up of civilian CID officers and ex-regulars to assist them in major cases.