Christopher has appeared before courts at all levels, including the High Court, Court of Appeal, House of Lords and Privy Council.
Christopher is a Centre for Effective Dispute Resolution (CEDR) accredited mediator and a Fellow of the Chartered Institute of Arbitrators. He is also an LMAA supporting member and sits regularly as a commercial arbitrator.
He is a former Chairman of the Commercial Bar Association (COMBAR).
Christopher was appointed as a Recorder in 2004 and a deputy High Court judge in 2008. He sits regularly as a judge of the Commercial Court.