The proposal would authorize police to declare temporary curfews anywhere in the city with as little as 30 minutes' notice when mass gatherings are expected or underway, and there is reason to believe they could become a risk to public safety.

Mayor Brandon Johnson intends to use his veto power to strike down a controversial ‘snap’ curfew ordinance the City Council approved Wednesday. The council needed 34 votes to make the ordinance, intended to control “teen takeovers” and give Chicago police officers another option for handling unaccompanied minors,