The frst female detective appears in W. S. Hayward’s Revelations of a Lady Detective (1861). Other female detectives graced the pages of Andrew Forrester Jr.’s The Female Detective (1864), Clarence Rook’s The Stir Outside the Café Royal (1898), Beatrice Heron-Maxwell’s The Adventures of a Lady Pearlbroker (1899), Grant Allen’s Miss Cayley’s Adventures (1898) and Hilda Wade (1899). However, female patrol officers were not allowed in the Metropolitan police force until 1919.
Sofia Stanley, the first female patrol officer in the Metropolitan Police