David Cameron's 'back to work' tsar quits The boss of a welfare-to-work firm at the centre of police investigations over alleged fraud has quit as the Prime Minister's "Family Champion," she announced. Emma Harrison said she did not want the probe, which has seen four ex-members of A4e staff arrested, to distract from the Government's efforts to help vulnerable families. "I have asked to step aside from my voluntary role as Family Champion as I do not want the current media environment to distract from the very important work with troubled families," she said in a statement. I remain passionate about helping troubled families and I am grateful for the opportunity to contribute in an area where I have been active for many years. David Cameron handed Ms Harrison the unpaid role of getting families back into work in December 2010. Two police investigations are under way after irregularities were referred by the firm to the Department for Work and Pensions.