A City Hall rewrite to tighten rules for protesters at this spring's gathering of international leaders in Chicago would also place permanent and little-publicized restrictions on all future demonstrations. Mayor Rahm Emanuel proposed the changes to the city's parade ordinance in his December request to the City Council for expanded powers to deal with the NATO and G-8 summits, set to overlap between May 19-21. The mayor said his request for new spending authority and additional restrictions on public gatherings is temporary and it's just for the conference and it's appropriate." But the mayor's office now acknowledges the protest rules would be permanent. And a closer look at Emanuel's proposals reveals a series of changes to arcane parade regulations that would be accompanied by a large boost in fines for violations - from the current $50 for some to a minimum $1,000 per violation. Stiffening rules on typically fluid demonstrations will increase the likelihood of violations, giving police more opportunity to crack down and making it more costly for demonstrators, free speech advocates said. "It's clear the more stringent the provisions, the more numerous, the greater the difficulty in complying with those provisions," said Harvey Grossman, legal director for the American Civil Liberties Union of Illinois.