A straitjacket was a jacket-like item of clothing used to restrain the wearer.
In 1883, Redvers Fenn-Cooper was held in a straitjacket while imprisoned in Gabriel Chase. (TV: Ghost Light)
In 1969, the Eleventh Doctor was held in a straitjacket while imprisoned in Area 51. He escaped it after being placed in a cell made of dwarf star alloy. (TV: Day of the Moon)
In 2007, Atif was placed in a straitjacket and taken away when he tried to investigate Torchwood. (WC: Tardisode 12)
In 2008, Sarah Jane Smith decided not to tell Mr Bradbury about her visit to medieval times, as doing so might earn her a padded cell and a straitjacket. (AUDIO: The Thirteenth Stone)
In 2009, Joshua Naismith had the Saxon Master placed in a straitjacket, but he was easily able to escape it, choosing to do so after the Immortality Gate was activated. (TV: The End of Time)
On Pluto, the Fourth Doctor and Bisham were held in straitjackets while imprisoned in the Correction Centre. Leela was placed in a straitjacket after she was captured. (TV: The Sun Makers)
On Segonax, the Seventh Doctor performed a magic trick for the Gods of Ragnarok in which he escaped from a straitjacket while hanging upside-down from a rope. (TV: The Greatest Show in the Galaxy)
The Teller was held in a straitjacket while imprisoned in the Bank of Karabraxos. (TV: Time Heist)