The Ann Arbor School Board is exploring options for a weapons-free school policy.
This comes after a March 5 incident in which a man caused concern after openly carrying a pistol to a Pioneer High School choir performance.
Michigan open-carry laws allow people with concealed carry permits to openly carry guns in schools.
The school board's governance committee met earlier this week to explore weapons and safety measures that adhere to state law.
The new policy could give Ann Arbor school officials the ability to ask visitors openly carrying weapons to leave campus.
So far, that measure is still in draft form.
The governance committee will meet again later this week to formalize language for the new policy before presenting it to the school board.