After consultation with the public official, or the designate of the public official, and the police, the Governor may proclaim an emergency period if the Governor finds that there exists on any public property a clear and present danger of injury to persons, damage to property or denial of or substantial interference with ingress or egress from public property. The proclamation shall describe the public property affected by the proclamation. The Governor shall cause the proclamation to be publicized. When the Governor finds that the danger has ended, the Governor shall proclaim the end of the emergency period. [Formerly 145.620]