LARAMIE, Wyo. (AP) — Attorneys for the University of Wyoming say the school is allowed to regulate guns on its campus under a previous U.S. Supreme Court ruling and state law.

They made their case in filings this week in a lawsuit brought by Lyle Williams. The Uinta County delegate was cited for openly carrying a gun during the state Republican convention at the university in April.

The Laramie Boomerang reported that attorneys say that the 2008 Supreme Court ruling that overturned a handgun ban in Washington, D.C. said that guns could still be banned in sensitive places like schools. While Wyoming cities and counties can’t pass gun regulations, they say the university is a state entity that is allowed to.

Williams’ criminal trial has been put on hold while his lawsuit is considered.

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