Underage drinking is a common issue on college campuses and sometimes Elon students are unsure how to react when approached by a police officer, especially if they've been drinking underage. Here are some things to think about when it comes to students knowing their rights. "When an officer actually says 'hey stop' or "let me ask you a few questions,' you're not free to leave," Kristina Marshall, an attorney in Graham, N.C., said. But there are some situations where it's fine to walk away. "If an officer comes up to you when you're just hanging out and says 'Hey how about the Phoenix... how about your classes,' you're still free to go," Marshall said.