ID card
From Tardis Wiki, the free Doctor Who reference
Alien experts from UNIT and other groups wore ID cards which were electrified by Jocrassa Fel-Fotch Passameer-Day Slitheen. Though the electricity was deadly to humans, the Ninth Doctor, being a Gallifreyan, survived and attached his ID card to a Slitheen, resulting in the pain being shared amongst the family. (TV: Revenge of the Slitheen) Just prior to this, Staff Sergeant Annie Frederick remarked on how quickly Number Ten had created the Ninth Doctor's pass. (PROSE: Operation London)
P.R.O.B.E. operatives carried ID cards: Louise Bayliss showed hers to Brittany Mordley, (PROSE: Silver-Tongued Liars) and Giles and Archie MacTavish showed theirs to the security guard of the Vault, Donovan. (PROSE: A Worthy Successor)
