Originally Posted by
missedthemark 
He has been clean for 3 weeks now, due to being in jail, so I assume his head should be at least somewhat clear? I don't know a lot about that, though.
Educating yourself is the best way to protect yourself from his disease. He may be clean but his brain has suffered damage from the abuse. It will take abstinence and several months if not a year or more for his brain to heal, depending on how long he was active in addiction.
It will take working some kind of recovery program every day, to change what lead him down that path in the first place. He'll have to change his way of thinking and that's the hardest part of recovery. He has to be willing and only time will tell when that is.