A District Superintendent of Police, better known as a Superintendent of Police, heads the District Police organisation of West Bengal Police. This is as per the Police Act of 1861, which is applicable to the whole of India. The Superintendents of Police are officers of the Indian Police Service. For every subdivision, there is a Subdivision Police, headed by a Police officer of the rank of Assistant Superintendent of Police or Deputy Superintendent of Police. Under subdivisions, there are Police Circles, each headed by an Inspector of Police. A Police Circle consists of Police Stations, each headed by an Inspector of Police, or in case of rural areas, by a Sub-Inspector of Police.