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A case before the Illinois Supreme Court Wednesday is challenging Chicago’s red light camera system.

This lawsuit has been years in the making.

Since 2003, the city has made hundreds of millions of dollars by ticketing drivers who run red lights at monitored intersections.

Then the drivers get tickets in the mail.

After the wife of local attorney, Patrick Keating, received a ticket in the mail, he started looking into the program a little more.

He says there is no law on the books allowing the city to ticket drivers with red light cameras.

“The reason the city has no authority is because they began their program, in the act of an ordinance, in 2003, before there was any state law allowing them to do so,” said Keating. “The state law requires traffic laws to be enforced uniformly and through the courts. Chicago’s red light camera program doesn’t do either.”

WGN Legal Analyst Terry Sullivan says the law could be declared unconstitutional because it only allows red light cameras in eight of Illinois’ 102 counties, “the State Constitution says there shall be no local laws that are different from the state laws when it comes to traffic violations, and that is really what the claim is today.”

Supreme Court justices heard the case in Ottawa’s courthouse because the courthouse in Springfield is being remodeled.