[3] Ng built a drug empire that, at the time of his arrest, was said to have covered Hong Kong, Macau, Thailand, Taiwan, Singapore, Britain and America.
[2] Ng was arrested in 12 November 1974 on charges of smuggling 20 tonnes of opium and morphine from Thailand and other countries into Hong Kong.
Nicknamed "Mr. Big" by the media, Ng was convicted in May 1975 to 30 years of imprisonment, the longest sentence ever imposed by a Hong Kong court at that time.
[2][4][5][6] His wife was subsequently arrested and was convicted on 23 February to 16 years imprisonment and was fined 1 million yuan.
[2][8] Ng Sik-ho's story has been adapted multiple times in Hong Kong cinema, and he served as a popular trope in Triad films.