I have a 15 y/o son that I have full legal and physical custody of. He has turned to drugs and his mom has intervened by giving him a place to stay without my consent. He is living in a house with his brother that’s unfit. His mother enrolled him in another school without my permission and has kept him away from me for over 3 weeks now. He is in an unstable environment and I would like to know what recourse I have. Did his mother break the law?