Notable examples include the drug dealing case of Ng Sik-ho, notoriously known as "Limpy Ho", who was heavily sentenced to 30 years' imprisonment in 1975, as well as the case of Sit Ping, a reporter of Xinhua News Agency who was sentenced to two years' imprisonment in 1967 for his involvement in illegal assemblies and aggressive acts during the leftist riots.
In 1971, he was appointed by the government to chair a commission of inquiry to investigate the disastrous fire which took place on board the Jumbo Floating Restaurant.
As the judge with the highest seniority in the Judiciary, he was on the list to succeed the retiring Chief Justice, Sir Denys Roberts, in 1988.
Although Cons retired from the Hong Kong Judiciary in 1993, he continued to serve as a Judicial Commissioner of the Supreme Court of Brunei Darussalam on part-time basis.
Cons formally relinquished his positions from the Hong Kong and Brunei Judiciaries in 2006, marking the end of his 51-year long judicial career.