Charles read for the Bar Finals while in New College, Oxford University. He was Called to the Bars of England and Wales and of Hong Kong. 

Charles is a practising barrister, mediator, arbitrator and Greater Bay Area (PRC) Lawyer. He is co-Head of Cedar chambers with an active practice as advisory counsel and advocate in civil and commercial matters. He gives legal seminars to the Hong Kong Monetary Authority, various Government departments and professional bodies. 

Charles serves as Adjunct Professor of Law at the City University of Hong Kong (CityU) , Adjunct Researcher of Southwest University of Political Science and Law (SWUPL), Chairman of Appeal Tribunal Panel of the HKSAR Government, Member of the Hong Kong Bar Association on the Arbitration Committee, Mainland Affairs Committee and Sports Law Committee. He also served as Chairman of the 9th Annual International Arbitration & Corporate Crime Summit and is a regular contributor to Bauhinia Magazine.