Crime Investigation Department (Pakistan), crime scene investigation, interrogation, anti-terrorism, and an intelligence bureaus
Crime Investigation Department (India), intelligence wing of the Indian State Police
Criminal Investigation Department (disambiguation), a branch of many police forces
Criminal Investigation Division (disambiguation), a branch of many police forces
United States Army Criminal Investigation Command, of which the operations division is commonly abbreviated to CID
CID West Bengal, state intelligence wing of West Bengal Police
Read next
From @akashadinath