I agree. I think it is admirable that you are trying to be protective, and you're right, she has no idea what she is getting into. Drug dealers don't tend to knock on the door and go away nicely if there is no answer. But she has made it clear that it is her problem. You have voiced your concern, but you can't save her from every situation.

I take it your FIL does not know the sitch she is living in?

Im still standin better than I ever did looking like a true survivor feeling like a little kid Im still standin after all this time and Im picking up the pieces of my life without you on my mind..