Hi Anne,
I am so sorry for the difficulties you are confronted with right now...
I believe being a parent / guardian / mother / father is most probably one of the most lovlely, important and at the same time challanging roles than any other I could ever dream of.
I have searched high and low and came up with this:
Telephone recording laws - Wikipedia, the free encyclopedia
I very recently lost a friend due to serious drug addiction... he was a great friend... he was like a brother to me, but he mixed with the wrong people.
I understand your concern and sometimes the law is not perfect, and definetly not God either...
Regardless of the legal status, I will give you the information you desire.
PM me for my email address. I will help you.
I might not understand what you are going through but that's not important.
I also have a recommendation for you, try to get him / her to counselling, this can do wonders.
Stay strong Anne
Regards
Wayne