sorry for your struggle but glad you found SR
My thought is, if the childs parent is an active addict.......someone needs to be involved. CPS may not know the entire situation, if your willing and able to step in then maybe you could contact CPS...........she should be afraid of him being taken away,,,,,,,,,,,,,,for his safety he shouldnt be living with an active addict. But if not you then someone. Maybe him being taken from her would be the bottom she needs to find help for herself.............many dont even after losing their kids....... but maybe
best wishes others with more wisdom and advice should be along soon