Metropolitan Police Service Scotland Yard in Whitehall. The Met's current headquarters is New Scotland Yard, situated on the Victoria Embankment. The Metropolitan Police Service, whose officers became affectionately known as "bobbies", was founded in 1829 by Robert Peel under the Metropolitan Police Act 1829 and on 29 September of that year, the first units of the service appeared on the streets of London. In 1839, the Marine Police Force, which had been formed in 1798, was amalgamated into the Metropolitan Police. In 1837, it also incorporated with the Bow Street Horse Patrol that had been organised in 1805. Since January 2012, the Mayor
Metropolitan Police Service Units. The MSC has its own internal rank structure. The prefix "Woman" in front of female officers' ranks has been obsolete since 1999. Members of the Criminal Investigation Department (CID) up to and including the rank of Chief Superintendent prefix their ranks with "Detective". Detective ranks are equivalent in rank to their uniform counterparts. Other departments, such as Special Branch and Child Protection, award non-detectives "Branch Detective" status, allowing them to use the "Detective" prefix. None of these detective ranks confer on the holder any extra pay or supervisory authority compared to their uniformed colleagues. The Metropolitan Police Service consists