Earth Examiner

During humanity's interstellar age, Earth Examiners were representatives of the homeworld that checked on the progress of humanity's colonies.

Shortly after his regeneration, the Second Doctor landed on the planet Vulcan, he chanced across an Examiner who was quickly killed from afar by Bragen. Hoping to learn more about the murder, the Doctor appropriated the Earth Examiner credentials. (TV: The Power of the Daleks)

When the Tenth Doctor was stranded without his TARDIS in the 41st century, he bluffed to be an Earth Examiner returned from Vulcan to get answers from the personnel at a spaceport. (AUDIO: The House of Kingdom)

When patients of the Hesguard Institute in the 53rd century began relapsing, the Ninth Doctor framed himself for the murder of Tara Mishra so he could infiltrate the facility. As part of the ruse, Rose Tyler used psychic paper to pass herself off as an Earth Examiner. (COMIC: Sin-Eaters)