My son is 6 and I have shared custody. His mother is a drug user and alcoholic and she takes my son with her to see her user ex when he's with her. I know she's driving under the influence and whenever I confront her, she denies it and has my son lie about it. He's going to end up badly hurt and no one will do anything about what's going on, i.e. CYS, local police, etc. I just need some advice on what I can do before the unthinkable happens. FYI, she wasn't a drug user or alcoholic until she started dating this ex she keeps going back to. Also, he's beat her up several times including once where my son called police. I can't take anymore and my son doesn't want to be around her, someone please help.