Adam, How would the police go about getting a breath test in this case? Just ask and hope no one says no? I understand the implied consent if you're driving, but just standing aroung at a party how do force a blow?
Since a breath test is a specific measure done in a specific manner, the only way to get one is if the person is compliant. You cant physically force one. So, if someone decides they dont want to do it, it wont happen.