Leong completed his secondary education at Wah Yan College, Kowloon.

His important contribution covered a wide field, including both civil and criminal cases, and embraces both trial work at all levels and in recent years, appellate work.

He has made a particularly significant contribution to the development of the bilingual capacity of our courts.

[4] He later served as Chief Adjudicator of the Immigration Tribunal[5] and as Chairman of the Post-Release Supervision Board.

[7] In 2003, Justice Leong was awarded the Gold Bauhinia Star, one of the highest honours given by the HKSAR Government.