Ann Arbor resident Joshua Wade is suing the University of Michigan after he was banned from openly carrying a gun on campus.

Michigan state law allows people with concealed carry permits to have guns on school property, as long as the weapon is visible.

University of Michigan policy on the other hand, states that no weapons can be carried on campus by anyone other than law enforcement or the military. Although university policy does allow waivers in “extraordinary circumstances,” the Detroit Free Press reports.

Wade lives and works in Ann Arbor and is often near the U-M campus, his attorney told the Free Press. He applied for a waiver to carry his weapon on campus in early September and was denied by the university’s chief of police.

Wade filed a lawsuit in June with the state’s Court of Claims alleging that U-M's policy violates both state law and the U.S. Constitution.

The Michigan Constitution “states that the right of the people to keep and bear arms for the defense of themselves and of the state shall not be violated,” Wade’s suit says.

A spokesman told the Free Press that the university stands by its policy.

“The university will vigorously defend its right to regulate weapons on campus to ensure the safety of students, faculty, staff, patients, health-care providers and hundreds of thousands of visitors, and to foster a supportive learning environment where students and faculty can feel free to explore challenging topics without fear of violence,” U-M spokesman Rick Fitzgerald wrote in an e-mail to the Free Press. “We expect to file a response to the lawsuit in accordance with the deadline established by the Court of Claims.”

This is not the first lawsuit Wade has been involved in.

Earlier this year, Wade carried a handgun into Pioneer High School during his sister’s choir concert. The school board then passed several new policies prohibiting anyone who is not a law enforcement officer from bringing a gun onto school property.

In response, the Michigan Gun Owners organization and one parent filed a lawsuit against Ann Arbor Public Schools in late April.