Black Archive

The Black Archive was a secret vault maintained by UNIT.

Function
It functioned as a depository of everything that shouldn't exist on Earth but did anyway, and required a UNIT level one clearance to gain entrance. (SJA: Enemy of the Bane)

History
The Doctor, during either his second or third incarnation, aided in the foundation of the Black Archive. (IDW: Don't Step on the Grass)

On 4 June 1972, UNIT bought the Tunguska Scroll from a private collector and placed it in the Black Archive. In 2009, Brigadier Lethbridge-Stewart smuggled Sarah Jane Smith into the archives to steal the scroll. (SJA: Enemy of the Bane) During the same year, the Tenth Doctor sent Martha Jones there to fetch information on the Krynoid virus in the hopes that it might hold a key to stopping the Enochian invasion in Greenwich Park. (IDW: Don't Step on the Grass)