Dhaka district was established in 1773, but it saw the Superintendent of Police (SP) from 1863. Lt. W. L. N. Knyvett was the first superintendent of Dhaka district Police. It has seven police stations- Savar Model, Ashulia, Dhamrai, Keranigonj Model, Dakhin Keranigonj, Nawabgonj and Dohar. It has two investigation centers and eight outposts including one river outpost. The National Mausoleum, the most adorable and highly sacred architecture of the nation, is situated at Ashulia. Jahangirnagar University, a renowned residential public university, is located at Ashulia. Ashulia is also the hub of garment industries.