According to this story from the BBC.
Would legalising drugs really have a detrimental effect on 'our children' as those opposed to legalisation like to claim? I don't think it would be any worse than having legalised alcohol. Indeed legalisation would largely remove the malign influence of those who sell all kinds of stuff to people illegally. Just a thought.
And if you want to know what 'Mr Nice' thinks then visit Howard Marks' website.