TARDIS revocation
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Because a TARDIS was, at a conceptual level, a "license to move", (AUDIO: "No Child of Earth" [+]Part of Death Comes to Time, Loading...{"namedep":"No Child of Earth","1":"Death Comes to Time (webcast)"}) it was possible for one to be "revoked" by a Time Lord's spoken authority, rendering it unusable. (WC: "Death Comes to Time" [+]Part of Death Comes to Time, Loading...{"namedep":"Death Comes to Time","1":"Death Comes to Time (webcast)"})
History
In one version of history, the Seventh Doctor revoked the Minister of Chance's TARDIS to force its owner to stay on Santiny and "face [him]self", after the Minister unleashed his full power and massacred the entire Canisian army in retaliation for the Canisian General Tannis ordering the death of his companion Sala. (WC: "Death Comes to Time" [+]Part of Death Comes to Time, Loading...{"namedep":"Death Comes to Time","1":"Death Comes to Time (webcast)"}) Although the Minister had left his TARDIS quite a distance away from the confrontation, in the form of a tree, (WC: "Planet of Blood" [+]Part of Death Comes to Time, Loading...{"namedep":"Planet of Blood","1":"Death Comes to Time (webcast)"}) the revocation was heralded by a crack of lightning, a white flash, and a clearly audible sound similar to that of a TARDIS materialising, but louder and briefer. Unable to reactivate his ship, (WC: "Death Comes to Time" [+]Part of Death Comes to Time, Loading...{"namedep":"Death Comes to Time","1":"Death Comes to Time (webcast)"}) the Minister's next incarnation would ultimately fall into the habit of travelling on foot through the Frost Bridge. (AUDIO: The Broken World [+]Loading...["The Broken World (audio story)"], etc.)
