Generate text that refutes this claim: Drugs will either be too cheap or too expensive  Low prices for drugs will hugely increase consumption of drugs, amongst all groups - addicts, previously casual users, and those who were not previously users. If drug provision is strictly regulated, an illegal black market may remain.
th addiction health general law crime policing house supports legalisation drugs
In a capitalist system reliant on supply and demand, the cost of a particular drug will always correspond to what people are willing to pay for them. So, there is no reason why a black market should spring up under a legalised system of drug sale.