History of the Metropolitan Police Service been headed by a Commissioner, rather than a Chief Constable which is the highest rank in police forces outside London. The first Commissioners to hold the post were Lieutenant-Colonel Sir Charles Rowan and Sir Richard Mayne. When Sir Charles Rowan died, leaving Sir Richard Mayne as the surviving Commissioner, Captain William Hay was drafted in to jointly run the force with Mayne. However, because the two Commissioners did not agree on methods of running the force, since 1855 it was decided that only one Commissioner would run the force. Metropolitan Police patrols took to the streets on 29 September 1829,
History of the Metropolitan Police Service regarding racial discrimination. The issue arose again in the 1999 Macpherson Report, which stated that institutional racism existed in the force. The official title was changed from "Metropolitan Police Force" to "Metropolitan Police Service" as part of the "PLUS Programme" in 1989, under the then Commissioner Sir Peter Imbert, following the presentation of a report entitled "A Force for Change: Report on the Corporate Identity of the Metropolitan Police" to the force's Policy Committee by Wolff Olins corporate identity consultants in August 1988. The current uniform for MPS officers is largely the same as forces outside London, apart from insignia