of Police (DGP) heads the state police. He is assisted by many police officers. State police headquarters is situated in Lucknow. For the purpose of maintaining law and order in the state, the state of Uttar Pradesh is divided into 8 police zones. Each zone is headed by an officer of the rank of additional director general of police who is an officer of the Indian police Service. Each police zone is constituted by 2 to 3 police ranges. There are a total of 18 police ranges in the state of Uttar Pradesh. Each range is headed by an officer of the rank of either inspector general of police or deputy inspector general of police which corresponds with the administrative division. Each police range is constituted by around 2 to 4 districts. District Police Units There are a total of 68 District police units (headed by SP/SSP) and 7 Police Commissionerate (headed by CP) in the state. In each district (except all current 7 commissionerates), the head of the police is the SP or SSP. In the discharge of his duties, he is assisted by Superintendent of Police (SP), Deputy Superintendent of Police (Deputy SP) or Assistant Superintendent of Police who may either be the officers of the Provincial Police Service or Indian Police Service. The number of SPs and Deputy SPs varies with the size, population, police work, or nature of police work in different districts. The number of SPs and Dy.SPs in districts like Gorakhpur, Bareilly, Meerut, Moradabad is considerably more than other districts. Whereas in smaller districts like Baghpat, Kannauj, Mahoba, Chandauli the number of the PPS officers is relatively lesser. Typically, a police district in the state corresponds with the administrative district. Though, the head of the police force in the district is the Senior Superintendent of Police (SSP)/Superintendent of police (SP), who is always an officer of the Indian Police Service, the ultimate/final responsibility with regard to the maintenance of the law and order in the district lies with the district magistrate who is an officer of the Indian Administrative Service. The police district is further subdivided into police sub-divisions or police circles. A police circle is usually headed by an officer of the rank of Deputy Superintendent of Police or Assistant Superintendent of Police. The officer heading the police circle/sub-division is designated as the Circle Officer (C.O.) in the state of Uttar Pradesh. A