hi. if you want to help him, find an alanon or naranon group in your area and speak up at a meeting. there will be folks there that can answer your concerns. i'll send you some links. take care, gm
He should be able to stop if he wants to with or without your help. If you are really on a mission to get him clean that could be an exercize in futility and co-dependency depending on how much energy you put into him or if it is more that he puts into his own recovery. Remember addicts lie all the time. all the best