The Indian Police Commission in 1902-03 recommended constituting Criminal Investigation Department (CID) in every province and on 21 March 1905 the Government of India accepted the proposal of the Commission. The Government 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. Criminal Investigation Department is the premier investigation agency of the State of West Bengal. In Bengal, Criminal Investigation Department (CID) came into existence on 1st April 1906 under Mr. C.W.C. Plowden. The first head of CID after Independence was Shri H.N. Sarkar,IPJP. At present , CID, West Bengal is headed by Dr. R.Rajasekaran, IPS, Addl. Director General & Inspector General of Police. The Head Quarter of CID is situated at Bhabani Bhaban, 31 Belvedere Road, Alipore, Kolkata -700 027 ( Telephone Number- 2450-6100 & 2450-6174 –Control Room- Fax – 2450-6174, Gazette- Criminal Intelligence Gazette).