Drugs and the homeless

Often people become often homeless because of drug abuse. Usually it is the use of booze. Sometimes homeless get low pay for working hard and the costs of their cigarette addiction makes paying rent just out of reach. Addicts do desperate things to get their drugs. Many would kill you if it meant drugs for them. I guess giving out free drugs to addicts in special hospitals might reduce drug related crime. I suppose drug testing for gun permits might be a good idea.