There is actually a positive correlation between the harshness of drug laws and the percentage of heroin addicts.
Iran has the highest rate of heroin addiction in the world and they've executed around 10,000 heroin traffickers over the last decade or so.
In 1996, Singapore had proportionally slightly more heroin addicts than the US. And Holland has a lower rate of heroin addiction than the US, using late 90's figures for both. These were the latest government figures I could find.
It does not mean that harsh laws cause higher rates of heroin addiction.
It means lenient laws don't necessarily lead to more of it.
Actually I agree. When prohibition was passed in this country, there was an explosion of alcoholism. I'd rather see the DEA eliminated or greatly downsized and spend the money on better things. The current system certainly isn't working that well.