Unfortunately for us all, you’re very wrong. While all drugs are not truly tasteless, there’s only a few that the taste can’t be easily covered up by soda or similar. And the drugs that can be used as a date rape drug are so astoundingly numerous that nobody has a complete list. New recreational drugs are discovered all the time, too, and each one is potentially usable in that application. Strong psychedelics, which the most popular ones literally grow on trees, are effective. Certain popular children’s toys, when consumed, metabolize into a GHB-related compound with similar effects (yes they know, no they don’t care).

If this was possible, don’t you think the most heavily policed country in the world would have even slightly been able to pull this off? When I say it’s an impossible task, I’m not trying to be dramatic. It’s simply too easy to get around any restrictions, and enforcement would require a truly omnipotent police force to be effective.