235 ILCS 5/9-16
Any clerk, judge of election, police officer or other officer of the law, who shall refuse or neglect or fail to discharge any duty imposed by this Article, and any one who signs a petition provided for in this Article, knowing he is not qualified to do so, or who files with the clerk any such petition or any sheet or other part thereof knowing that it contains the signature of a person not qualified to sign the same, or who receives, requests or demands or gives, offers or promises any reward for the signing or the refraining from signing of any such petition, or who by treating or giving alcoholic liquor or anything else, or by threats to injure another in person or property, or by betting or other device, either directly or indirectly influences or attempts to influence anyone to sign or refrain from signing any such petition, shall be guilty of a violation of this Article and punishable therefor.
235 ILCS 5/9-16