 London's other airports, Gatwick, Stansted and Luton are policed by Sussex, Essex and the Bedfordshire Police respectively, as they are not located in the Metropolitan Police District.Policing at Heathrow was initially undertaken by the Civil Aviation Authority.In 1965, the responsibility was taken over by the British Airports Authority Constabulary, which subsequently passed to the Metropolitan Police on 1 November 1974 as a consequence of the Policing of Airports Act 1974.