[tacticalogic]

I think the criteria would be posing a threat to public safety beyond the ability of the user to understand, moderate and deal with the consequences.

[MrLeRoy]

I think the criteria would be posing a threat to public safety beyond the ability of the user to understand, moderate and deal with the consequences.

A drug user is able to understand the effects of the drug he's about to take and moderate his intake. Or are you suggesting that it's legitimate to ban drugs that can in sufficient quantity render the user unable to prevent himself from committing hazardous acts? If so, which drugs are those, and does the list include alcohol?