The Voting Booth was used by the citizens of the Starship UK to give their own views on the ship's history and situation. People over the age of sixteen were allowed to vote once every five years.
Function
The booth identified the individual who entered it, and then displayed records relating to that person, including birth and marriage status when available. The booth then showed a video to the voter, describing how Starship UK used a Star Whale as its propulsion system. After viewing the video voters were given a choice to forget what they saw and go on living or to protest against the running of the ship. If they chose to forget, about fifteen minutes of their memory was removed. This included all knowledge of the video. The voters were, however, able to leave a video for themselves, following the memory wipe process. Those who did protest were fed to the Star Whale. (DW: The Beast Below)
Limitations
The booths would not allow non-humans (such as the Eleventh Doctor) to view the video. However, they could still choose the "protest" button. (DW: The Beast Below)