A criminal investigation department or crime investigation department is a branch of many police forces. It may refer to:

Criminal Investigation Department, overview article Criminal Investigation Department (Bangladesh) Criminal Investigation Department (India) CID West Bengal Criminal Investigation Department (Ireland) Criminal Investigation Department (Singapore) Criminal Investigation Department (Sri Lanka) Criminal Investigation Department (Kenya)

See also Criminal Investigation Division (disambiguation) CID (disambiguation) National Bureau of Investigation (disambiguation) Cambala Investigation Agency, Indian television show