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(c) Prohibition of weapons, firearms, and destructive devices at city council meetings. The carrying or possession of weapons, firearms or destructive devices at Billings city council proceedings by any person except law enforcement personnel is prohibited.
(d) Signing. Suitable signs giving notice that weapons, firearms and destructive devices are prohibited at city council proceedings will be posted in appropriate areas.
(e) Penalties. A person convicted of carrying or possessing weapons, firearms or destructive devices at city council proceedings shall be fined not to exceed five hundred dollars ($500.00) or by imprisonment not to exceed six (6) months or both.