In some cases, people can find themselves on the Sexual predators illinois offender registration list without even engaging in a sex act. ISP updates this information regularly in an effort to assure that the information on the Registry is complete and accurate; however, ISP makes no representation, express or implied, that Sexual predators illinois information contained on the Registry is accurate. Individuals included on Sexual predators illinois Registry are included solely by virtue of their conviction record and Illinois state law. I have read the disclaimer. Anyone who uses this information to commit a criminal act against another person is subject to criminal prosecution. If a person works or attends an institution of higher learning, he or she must register at the local police department for the municipality of that institution as well.