After passing the
Bar exam in 1959, Litton entered into private practice in Hong Kong where he was eminently successful as a trial lawyer. Litton was appointed
Queen's Counsel in 1970 and co-founded the
Hong Kong Law Journal with
Gerald de Basto QC, another local
barrister. He also served as Chairman of the
Bar Association from 1971 to 1973, from 1977 to 1980 and again from 1983 to 1985. Litton was appointed in 1987 an Officer of the Most Excellent
Order of the British Empire for his contribution to the law and was elevated to the bench in 1992 as a Justice of Appeal. He rose steadily through the ranks, becoming Vice-President of the
Court of Appeal in 1995 and a Permanent Judge of the
Court of Final Appeal (Hong Kong's
court of last resort) in 1997, when British colonial rule in Hong Kong ended and China resumed its sovereignty over the region. He assumed senior status three years later, citing personal reasons. Until 2015, he continued to hear cases on a part-time basis as a non-permanent judge of the Court he served. In 2007, Litton was appointed a Judicial Commissioner, as well as a Justice of Appeal, of the
Supreme Court of Brunei Darussalam. ==Post-judicial life==