具体位置，请进
那个police station 是在clementi bus exchange的对面。也就是说，你先上那个去乘MRT的电梯，然后一直沿着天桥走去对面。然后往左前方向走大概100多米就到了。不过最好路上问问人。
到了警察局以后，你去那个接待处clarify一下，一般他会让你等一下，然后该干啥就干啥

Two minutes' walk from the Clementi MRT, at the junction between ave 4 and ave 5
After getting off from the MRT station, walk towards the bus interchange, at the crossroads turn right and you'll find the NPC down the road.