My issue with drug policy revolves around two key points:
1. The war on drugs is an utter failure (by that I mean, it hasn't halted drug use but there are likely those in power who benefit from this)
2. None of their policies tackles root causes, e.g. putting ex-drug users back into their old habitats will likely guarantee they'll just do it again.
I'm from Glasgow (Kirkintilloch), live in Ayrshire now, and I saw it first hand: I had two friends die of OD's years ago.
I only visit Glasgow city centre on occasion and each time I do it appears to get worse but I live near Irvine now and you can tell a mile away who's had their methodone so it's no better down here.