I go to school in Iowa and I received a an underage possession inside a bar. I was asked by the police if the drink in my hand was mine. I said it was and was very polite and agreeable throughout the whole situation. I left the bar and walked home. That was about a month ago. About a week ago, I got a letter saying that I have an under 21 drinking and driving charge. I have no idea where it is from. That minor charge was the only time I had a run in with the police and I think there is some mistake.