The Crime Investigation Department {अपराध जांच विभाग} (CID) is the investigation and intelligence wing of the Indian State Police.
The CID was created by the British Government in 1902, based on the recommendations of the Police Commission. At the entrance of the CID office at Gokhale Marg, Lucknow, there is a portrait of Rai Bahadur Pandit Shambhu Nath, King's Police Medalist (KPM) and Member of British Empire (MBE) with a caption"Father of Indian CID" In 1929, the CID was split into Special Branch, CID and the Crime Branch CID (CB-CID).
The CID has several branches which work from state to state. These branches include:
CB-CID is a special wing in the CID headed by the Additional Director General of Police (ADGP) and assisted by the Inspector General of Police (IGP). This branch investigates serious crimes including riots, forgery, counterfeiting and cases entrusted to CB-CID by the state government or the High Court.