Police

Police forces are government organisations charged with the responsibility of maintaining law and order. Owing to his renegade status and his penchant for arriving at a particular place and time just as trouble is starting, the Doctor has had numerous encounters with police and other officers of the law on his travels.

• A lone policeman patrolled the Coal Hill area of London in 1963. Despite passing a junkyard owned by I.M. Foreman he did not notice the presence of a strange humming police box. (DW: An Unearthly Child)

• Thanks to the intercession of the temporarily miniaturized Doctor and his companions, police (including PC Bert Rowse) were able to arrest corrupt industrialist Forester for the murder of Arnold Farrow. (DW: Planet of Giants)

• Pursued by the Daleks through time and space, the TARDIS materialized in the yard of a police station in 1965 Liverpool, its scanner malfunctioning. After some trouble with the local police, the Doctor managed to repair the malfunctioning scanner and depart. (DW: The Daleks' Master Plan)

• When a policeman approached the TARDIS, the Doctor hung a sign reading "out of order" on the front of his ship. The policeman moved on after seeing the sign. (DW: The War Machines)

• A policeman spotted the Doctor and his companions on a runway at Gatwick Airport and chased after them. When they scattered, the policeman went after Ben. (DW: The Faceless Ones)

• Two Autons impersonated police in a failed attempt to kill the Doctor and Jo Grant. (DW: Terror of the Autons)

Apocrypha

• Tom Campbell was a Police Constable from London who witnessed a robbery and bursts into Dr. Who's TARDIS. (Film: Daleks - Invasion Earth 2150 AD)