Mr. Jackson Poon was called to the Hong Kong Bar in 1986.  He is experienced in dealing with civil and criminal cases.  In 1994 and 1995, he sat as a Deputy Magistrate for the Judiciary.  In 1995, he joined the then Legal Department (now Department of Justice) directly as a Senior Crown Counsel.  In 2006, he returned to private practice.  He is now in Cheng Huan Q.C., S.C.’s Chambers involved in civil cases and criminal litigation.  In August 2015, he sat as a Deputy District Judge.

Mr. Poon has handled numerous personal injury cases and has given many lectures on personal injury.  He has also handled cases involving Employees Compensation, Incorporated Owners disputes, Lands Tribunal trials, Trust, Commercial disputes, Sales of Goods, Manufacturing of Goods, Construction, Dishonoured Cheques, Defamation, Landlord and Tenant disputes, Conveyancing disputes, Employment disputes, Land disputes, Company matters and Judicial Reviews.  He has handled various criminal cases and he is a listed mediator of the Bar Association.

Various law lectures had been delivered by him for the University of Hong Kong, Hong Kong Polytechnic University, City University, Law Society, Butterworths, Police Detective Training School and Criminal Advocacy Courses of the Department of Justice.