From 2011 to 2016, Christopher was Chairman of the Judicial Appointments Commission. In 2016, he was awarded a CBE for services to the Judiciary.  Prior to this, he was a Member of the Senior Salaries Review Board and a Civil Service Commissioner.

Christopher was non-executive director of WSP, a global engineering consultancy, and Holidaybreak plc, a travel and education business.  He was previously Chairman of Traidcraft and Chairman of the DHL UK Foundation, a charity committed to community development and education projects both in the UK and worldwide. Before that, he was the Group Human Resources Director of Exel (now DHL), the international logistics company.