Mathews moved to Hong Kong in 1968, where he was appointed a Crown Counsel. He was appointed deputy Law Draftsman in 1978. In 1982 he was appointed Crown Solicitor, having been appointed deputy the year before. In 1988 he was appointed the final Attorney General of Hong Kong succeeding Michael David Thomas QC. He was the first solicitor to be appointed attorney general in Hong Kong. Mathews was a member of the Hong Kong Legislative Council from 1985 to 1995. He was awarded a CMG in 1989. Soon after becoming attorney general, Mathews had to deal with three scandals involving the Attorney General's Chambers. The first involved Christopher Harris, a senior Crown Counsel, who was caught procuring a girl under 12 for sex. On advice from a private barrister, Mathews decided not to prosecute Harris. After a public outcry, and after seeking further advice, he reversed the decision and Harris was convicted and sentenced to 18 months' imprisonment. Second, the same year, Warwick Reid, the Deputy Director of Public Prosecutions, was investigated for receiving bribes and absconded. Mathews admitted later he allowed Reid to stay in his position even though he knew he was under investigation. The third was his last-minute intervention in a wounding case involving an English Cathay Pacific pilot Ian Wilkinson. At the criminal trial rather than calling evidence an agreed fact sheet was prepared. The intervention by Matthews raised questions about the administration of justice and the rule of law in Hong Kong as well as the way in which Matthews had handled the matter which had effectively prevented the wife from taking out a private prosecution. Matthews was called before LegCo but refused to explain his decisions. Matthews then made certain statements to the press which were immediately challenged and found to be untrue. The handover of Hong Kong to China prevented this case being further investigated since the Chinese Government said they could not be held responsible for any questionable decisions taken by the previous colonial government and the Lord Chancellor's office claimed it came under the remit of the Foreign Office. Mathews served as Attorney General of Hong Kong until 30 June 1997, when Hong Kong's sovereignty was transferred to People's Republic of China. Mathews was quoted on the possibility of a legal vacuum after the handover as saying: "After midnight on the 30th of June, it ain't my problem"
Retirement
Mathews retired after the handover and returned to England. In retirement he has served as deputy district chairman of the Appeals Service and as chairman of the Overseas Service Pensioners' Association.
Personal life
Mathews married Sophie Lee in 1968 and they had two daughters. The marriage was dissolved in 1992 and that year he married Halima Guterres, who is a writer and former journalist with South China Morning Post. His recreations are reading, gardening and music.
