Scotland Yard

Scotland Yard was a police service that operated in the United Kingdom.

Inspector Lestrade was a detective from Scotland Yard. (NA: All-Consuming Fire)

Ian Stratford was transferred from Scotland Yard to the Metropolitan Police Service. (EDA: The Banquo Legacy)

The Eleventh Doctor pretended to be an officer from the service whilst visiting the White House. (DW: The Impossible Astronaut)

It appears that in the 22nd century, Scotland Yard was replaced by New New Scotland Yard. (DWBIT: Pawns of the Zenith)