Van Statten Incident

The Battle of GeoComTex began when the "last" Dalek escaped from an area within a GeoComTex facility known as The Vault in 2012. Two hundred security personnel fought the Dalek, but all were exterminated without damaging it. The Dalek continued travelling throughout the facility, up through the facility's staircases, in one skirmish with the facility's remaining security forces it activated the fire extinguishers, killing all the humans simultaneously (utilising the Dalek weaponry's conductive ability).

The Dalek eventually located Henry van Statten, the human who had held it captive and nearly killed him, however this was prevented by Rose Tyler. Rose Tyler had some sway over the Dalek's actions as it had absorbed her DNA to regenerate itself and escape it's captivity. A side effect of this absorption was an awakening of emotions in the Dalek. Though the The Ninth Doctor threatened to destroy the Dalek with an alien weapon, he was convinced otherwise by Rose once she showed him the Dalek's difference to before. It ended its pain (induced by the emotions) by self-destructing. It needed someone to give it orders so it asked Rose to give this order herself, which she did, reluctantly. Following this outcome the facility was sealed off, and Henry van Statten's memory was erased. (DW: Dalek)