2 From 1919 to 1933, we conducted a national experiment in drug prohibition. The drug of choice at that time (besides marijuana and opium) was alcohol. The 18th Amendment made it illegal and sparked off a bloody war that only the... Our Other Unconstitutional WarThis entry was tagged Constitution Drug Laws Law Enforcement Local Police Police State Prohibition War On Drugs and posted on June 14, 2008 by Jason Everett Miller