The West Bengal Police is one of the two police forces of the Indian state of West Bengal. (The other is the Kolkata Police, which has a separate jurisdiction.)The West Bengal Police was reorganized under provisions of the Police Act 1861 during the British Raj. It is headed by an officer designated as the Director General of Police who reports to the State Government through the Home (Police) Department. Shri Naparajit Mukherjee, an IPS officer of 1976 batch took over as the DG & IGP of West Bengal Police on August 31, 2010 and is expected to occupy the post until 2013.The West Bengal Police has jurisdiction concurrent with the eighteen revenue districts of the State (excluding the metropolitan city of Kolkata) which comprises one of the two general police districts of West Bengal as under the Police Act 1861. The other general police district consists of the major portions of the metropolitan area of Kolkata, and has a separate police force (Kolkata Police) constituted and administered under the Calcutta Police Act 1866 & Calcutta (Suburban Police) Act 1866. This arrangement, unique in India, was conceived during colonial times when Calcutta was the capital of British India. The city police have been kept independent of the state police force.StructureZonesThe police administration in the state is divided into three police zones and a Government Railway Police Zone, each headed by an Inspector General of Police. Each Zone consists of one or more Ranges headed by an officer designated as the Deputy Inspector General of Police . In all, there are 22 police districts , each headed by a Superintendent of Police. Each Zone is headed by an Inspector General of Police. The three Zones are South Bengal, Western Bengal and North Bengal, and an office of the IGP railways.training college.