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 junk yard owned by I.M. Foreman he did not notice the presence of a strange humming police box. - ("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. - ("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. - ("The Daleks' Master Plan")

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