https://www.facebook.com/SGRVigilante/videos/2441327229473864/

Source: SG Road Vigilante

Blue Audi driver was speeding and zig zaging overtaking other drivers along Keppel Viaduct.  He was later stopped by the these rapid deployment  officers on their BMW bikes.

They were not stealth Traffic Police officers but rather Rapid Deployment Troops (RDT), from the Special Operations Command (SOC)

Audi driver must have drove recklessly and endangered the lives of these officers for them to take action. Good job and be safe officers.