Security Secretary
Security Secretary, both on and off-world, was a title usually held by the Vice President of Gallifrey.
According to Cardinal Matthias, in tandem with the role of Presidential Representative to Non-Gallifreyan Dignitaries, it constituted the "cornerstones of Vice Presidential power". This was true to such an extent that Matthias was able to claim he was Vice President in "all but name" after he tricked Lady President Romana and the High Council into granting him the powers of both positions, even going so far as to claim the Presidency itself after Romana was issued with a vote of no confidence.
Chancellor Valyes had never heard of the title before Matthias staked his claim, something Matthias put down to the fact that there had been no Vice President for some time. (AUDIO: Appropriation)