This is nothing lah........
In the 1980s, CNB officers operated in Malaysia against Malaysian drug suppliers who sent their drugs to Singapore, Often, the Malaysian Police were kept in the dark until it was time to strike, whereupon the information would be released to the Malaysian Police so that joint ops could be carried out.
In one ops, CNB officers led the Malaysian Police Special Forces - the Unit Tindakan Khas (UTK), into the jungles to raid a heroin lab. The resulting arrests led to Malaysian Police uncovering one of the largest drug trafficking rings in the Peninsular. The UTK and 69th Commando Battalion was later merged. It was then called Pasukan Gerakan Khas (PGK).
The Malaysian UTK
THese combined Ops came to an end in the 1990s when ISD officers like Smily Sim and the Long Jaw were posted to CNB. The ISD types viewed the Malaysians with suspicion, and instead of offering continued cooperation, Singapore withdrew.
This chapter in Singapore's law enforcement history remains hidden..... as usual.......