Legalization might be the wrong word for it but you can actually get heroin legally in some european countries when you are addicted. In Germany this means you

Legalization might be the wrong word for it but you can actually get heroin legally in some european countries when you are addicted. In Germany this means you have to show up at the doctor and use the heroin there. You can't help people that are already addicted by persecuting dealers more, but you can make it more safe for them in lots of ways (harm reduction). Cutting out the dealers might even help getting less people addicted.