Ever since I've been driving in Illinois they have always been aggressive when trying to catch speeders. If your on I-57 around Cairo you better heed to the speed limit because there is almost always a trooper(s) set up along the interstate. I have to say though that once you get to around 30 to 40 miles north of there the traffic picks up speed and your pretty safe to go 5 mph over the limit. Never been pulled over in Ill. and don't want to be.

I first heard of these cameras being used there two years ago so I'm in the know.