Smith compares their DNA, and confirms that Luke and Ashley are the same person; apparently Luke was not 'grown' by the Bane, but was a kidnapped boy. Chrissie calls the police and reports Sarah Jane as a child abductor; Sarah Jane is arrested and the police release Luke into the custody of Ashley's parents, Jay and Heidi, and Sarah Jane kept by the police, only for UNIT to intervene and have her released.
Heidi
Sarah Jane