When he met her in his eighth incarnation, he saved her from what should have been her natural death, although it was what the Tenth Doctor would later call a "fixed point in time". (AUDIO: Storm Warning, COMIC: Fugitive) This act of compassion was a violation of the Laws of Time. It destabilised the Web of Time and forced the Time Lords to send him into exile in the Divergent Universe. (AUDIO: Zagreus) Even as late as his tenth incarnation, the Doctor still had to explain his actions with respect to Charley in a court of law. (COMIC: Fugitive)