The Indian Police Commission in 1902-03 recommended constitution of Criminal Investigation Department (CID) in every province and on 21 March 1905 the Government of India accepted the proposal of the Commission and issued instructions to start the department in every province by 1907. In Bengal, Criminal Investigation Department (CID) came into existence on 1st April, 1906 under Mr. C.W.C. Plowden. It is the premier investigation agency of the State of West Bengal. The first head of CID after Independence was Shri H.N. Sarkar, IPJP. At present, CID, West Bengal is headed by Shri Natarajan Ramesh Babu, IPS, Director General and Inspector General of Police. The Head Quarter of CID West Bengal is situated at Bhabani Bhaban, 31, Belvedere Road, Alipore, Kolkata -700027, Telephone No - 033-2450-6100 & Telefax - 2450-6174. Email Id: contact@cidwestbengal.gov.in Website: cid.wb.gov.in. CID, West Bengal has a cyber-crime police station, Cyber-Forensic Training Laboratory, Finger Print Bureau, Questioned Document Examination Bureau, Bomb Detection and Disposal Squad (BDDS), several specialized units for investigation into special cases and 24 DD Units spread across the West Bengal State.