510 ILCS 70/7.15

(a) A person may not willfully and maliciously annoy, taunt, tease, harass, torment, beat, or strike a guide, hearing, or support dog or otherwise engage in any conduct directed toward a guide, hearing, or support dog that is likely to impede or interfere with the dog's performance of its duties or that places the blind, hearing impaired, or person with a physical disability being served or assisted by the dog in danger of injury. (b) A person may not willfully and maliciously torture, injure, or kill a guide, hearing, or support dog. (c) A person may not willfully and maliciously permit a dog that is owned, harbored, or controlled by the person to cause injury to or the death of a guide, hearing, or support dog while the guide, hearing, or support dog is in discharge of its duties. (d) A person convicted of violating this Section is guilty of a Class A misdemeanor. A second or subsequent violation is a Class 4 felony. A person convicted of violating subsection (b) or (c) of this Section is guilty of a Class 4 felony if the dog is killed or totally disabled, and may be ordered by the court to make restitution to the person with a disability having custody or ownership of the dog for veterinary bills and replacement costs of the dog.