You aren't 21 yet, but some of your friends are. You went on what was supposed to be a exciting night out with your friends, and then things went an unfortunate and unwelcome direction. You were driving and got pulled over. The officer claimed to have smelled alcohol, and now you're facing charges of driving with a blood alcohol concentration over 0.0 percent while under the age of 21. Minnesota has a policy on underage DWI that limits you to no alcohol in your system whatsoever when it comes to driving.