In our custody papers for our 4 year old daughter we had it state that "neither parent will consume any alcoholic beverages while the minor child is in their physical custody." But, I know he has been drinking when he has her so what can I do to prove this? And once it is proved, what happens? Also, he hasn't paid child support for over a year and I know he's been working at a local bar and getting paid cash, so how do I go about proving that too?