The Metropolitan Police Service (often called the Met) was a police service responsible for Greater London. For some time, the Met was based at Scotland Yard, with the name becoming synonymous for the service.
On 23 October 1843, the service managed to write off seven civilians and one of their own officers as having been crushed by a bus when in fact, several stone lions had killed them. (PROSE: The Lions of Trafalgar)
Inspector Lestrade was a detective from the service (PROSE: All-Consuming Fire) and Ian Stratford transferred there, citing "personal reasons". (PROSE: The Banquo Legacy) Dennison was a sergeant in the Met. (TV: Planet of the Dead)
The Doctor and the Met
The Ninth Doctor distracted a group from the service while in 10 Downing Street. (TV: World War Three) The Eleventh Doctor pretended to be an officer from the service whilst visiting the White House. (TV: The Impossible Astronaut)