510 ILCS 70/6
No person may knowingly poison or cause to be poisoned any dog or other domestic animal. The only exception will be by written permit from the Department for the purpose of controlling diseases transmissible to humans or other animals and only when all other methods and means have been exhausted. Such a written permit shall name the person or persons conducting the poisoning, specify the products to be used, give the boundaries of the area involved, and specify the precautionary measures to be employed to insure the safety of humans and other animals.
This Section does not prohibit the use of a euthanasia drug by a euthanasia agency for the purpose of animal euthanasia, provided that the euthanasia drug is used by or under the direction of a licensed veterinarian or certified euthanasia technician, all as defined in and subject to the Humane Euthanasia in Animal Shelters Act.
A person convicted of violating this Section or any rule, regulation, or order of the Department pursuant thereto is guilty of a Class A misdemeanor. A second or subsequent violation is a Class 4 felony.
510 ILCS 70/6