The Economist ran an interesting story about “a government-issued stamp that is expected to remain unpurchased, but which users of illegal goods must, by law, affix to substances they are not allowed to possess”. Essentially, the government is creating another layer of crime above a crime. It’s as good as saying you should not be stealing people’s money, but if you do really steal, then you’ve to pay taxes on your loot. If you avoid the taxes, you’re committing tax evasion plus theft.
Authorities seem to believe that the tax helps to further punish people who are arrested for a crime (since the inability to discover the original crime would make the taxes lame anyways) and thus serve a higher level of deterrence to the crime. I wonder if criminals would bother to discover that they would be penalized twice for a single crime.
The Marijuana Tax Act of 1937 was cited as an early conception of taxing illegal drugs. It is interesting that old bureaucracies sometimes like to make an act inconvenient rather than ban it outright. Maybe it just happens to drugs; Singapore could actually try applying extremely steep taxes on Chewing Gums rather than ban it outright.