Lord Patten, the new BBC Trust chairman, poses for a photograph outside BBC Broadcasting House on his first day in the position on May 3, 2011 in London, England. Lord Patten takes over the role of BBC Trust chairman from Sir Michael Lyons who had held the position for four years. Prior to being appointed chairman, Mr Patten said he would give up the Tory whip in the Lords to avoid a conflict of interest, but remain a member of the Conservative party.