The Corrupt Practices Investigation Bureau (CPIB) launched a coffee table book yesterday to mark its 60th anniversary, and among the 18 high-profile cases featured in the book is that of Ah Long San, Singapore's notorious loan shark of the 1990s.
This feared criminal was not caught for a long time partly because he had moles within the police force who tipped him off about raids.
How did he get so many cops - nine - to accept his bribes?
Whose law studies in Britain did he sponsor?
How did investigators eventually get his chauffeur to help them track him down?