Having any weapon of any sort including an air gun without a license (which only Police officers have) will have you thrown in prison for a maximum of FOREVER with caning.
Now be cool, keep that cardi away. Possession of drugs results in a maximum of a life sentence. Drug trafficking results in the death penalty.
Welcome to Singapore, the land of laws where you can't sneeze without paying a fine or two.
I come to liberate ye? O.O
Which branch? Well if I told you at this point you'd wouldn't want me to visit your country for holiday. xD. Marine Corps.