They don't have a constitution that protects individual liberty?
Fascinating, you decided to blow off the larger half of the post because you can't attack it, amply demonstrating the lack of integrity in your blanket accusation.
Given that we used to enforce similar drug laws in this country when the Constitution was in far better shape, you don't have a case.
Singapore has the advantage of being a tiny city-state with one airport, a small, secure border with Malaysia, and a well-regulated port. Combine that with broad police powers, and that is today's Singapore.
You should stick to clarifying environmental issues. You do so well at that. Seriously. Else wise educate yourself to the realities of protecting individual rights and property rights. You seem to understand them regarding the environment. It's a wonder why you don't see the common denominator with other issues such as the WOD.