When they prohibited alcohol they needed a Constitutional Amendment The Volstead Act!!
Nothing on opium, marijuana, coca, etc. I might like coca leaves it's perfectly legal in Peru to chew them and they are hard workers meanwhile some teen overdosed and died on caffeinated beverages just 3 drinks combined I believe it was.
Opium was made illegal because the opium smoking Chinese would work twice as hard as a white man for less pay.
Marijuana/hemp because it makes negros and Mexicans rape white women.

So much for Tomas Jefferson prefering a pipe of hemp over tobacco. Trump even used Mexican rapist fear in his campaign but he did backtrack a little.
The war on drugs is TREASON!!! in the highest form! As is prohibition on gambling and prostitution.