The Illinois Supreme Court issued a horrible opinion, upholding the ban on predators and “child sex offenders” from parks. You can read the full opinion here: https://www.courthousenews.com/wp-content/uploads/2018/04/SexOffendersIL.pdf
The crux of the opinion is that the state’s ban on sex offenders from parks (which an appellate court previously found unconstitutional) was found to be constitutional and the same “frightening and high” myth that has been prevalent in other bad decisions has permeated this one too. Although the Court acknowledged that empirical science has debunked these myths, it found that the legislature is more appropriate to interpret those studies than a court. VERY BAD!
The only saving grace is that the Supreme Court allowed the case to be remanded to the appellate court for consideration of an Ex Post Facto challenge. Let’s hope something can still come out of this.