In Bengal special control was introduced in 1808 by the appointment of a Superintendent or Inspector General for the divisions of Calcutta, Dacca and Murshidabad. In 1810, the system was extended to the divisions of Patna, Bareilly and Benares. However, with the appointment of Divisional Commissioners, the office of the Superintendent was abolished. The next major change in the organization of police took place in Sindh where Sir Charles Napier, drawing inspiration from the Irish constabulary, developed a separate and self-contained police organization for the province. The Sindh Model was put into effect in Bombay and Madras in 1853 and 1859, respectively. Two main branches, the Military Preventive Police and the Civil Detective Police. The Commission recommended that only the District Magistrate should exercise any police functions. Based on the recommendations of the Commission, the Government of India submitted a bill which was passed into law as Act V of 1861. The Police Act of 1861 was adopted by all the provinces except Bombay where a District Police Act was adopted in 1890. The Bombay District Police Act continued to remain in force in Sindh till the establishment of the one unit.