The biggest graft case here to date is that of former Public Utilities Board deputy chief executive Choy Hon Tim, who was jailed for 14 years in November 1995 for corruptly receiving $13.85 million in bribes.
He was arrested after the Corrupt Practices Investigation Bureau was tipped off that the then 58-year-old senior civil servant had taken millions in kickbacks from contractors when he was the PUB's chief electrical engineer.
In exchange for the bribes, he gave them information that helped them win PUB contracts.
In one of the largest cases of private-sector corruption, former Ikea food services manager Leng Kah Poh, 55, was given 98 weeks' jail and ordered to pay a penalty of $2.3 million in 2014.
He had conspired with two others to skim millions of dollars off inflated contracts to supply food to furniture giant Ikea between 2003 and 2009.
Leng succeeded in his appeal against conviction and was cleared in 2013, but the Court of Appeal restored his original sentence after overturning the acquittal in November 2014.