ANN ARBOR, Mich. (AP) — The University of Michigan is defending an anti-gun policy, saying the state constitution gives it the power to manage its property.

The university is being sued by Joshua Wade, an Ann Arbor resident who wants to carry a gun in the open. The Detroit Free Press says the university’s police chief rejected a waiver.

U-M is asking the Michigan Court of Claims to dismiss Wade’s lawsuit. Wade’s lawyer says policies set by the university’s Board of Regents can’t trump state law, which allows people with permits to take a gun into certain areas as long as the weapon is visible.

The university, however, says there’s a long line of court decisions that gives it “expansive authority” over its affairs.