Prohibition has caused these problems by leaving the market for the drugs people want to use in the hands of criminal gangs who care nothing about quality or consistency and will adulterate their product with anything they think will make it more potent and addictive, ironically killing their own customers in the process. There will always be a market for drugs, there will always be a supply chain of some sort and legalisation is the only thing that will reduce the problems. Anything else is a band-aid solution, and I have to wonder how much our elected representatives really care about this when the answer has been obvious for decades.