As used in this Article, the following words shall have the following meanings and definitions:
(A) “Vicious dog” means:
(1) Any individual dog that when unprovoked inflicts bites or attacks a human being or other animal either on public or private property.
(2) Any individual dog with a known propensity, tendency or disposition to attack without provocation, to cause injury or to otherwise endanger the safety of human beings or domestic animals.
(3) Any individual dog that has a trait or characteristic and a generally known reputation for viciousness, dangerousness or unprovoked attacks upon human beings or other animals, unless handled in a particular manner or with special equipment.
(4) Any individual dog which attacks a human being or domestic animal without provocation.
(5) Any individual dog which has been found to be a "dangerous dog" upon three (3) separate occasions.
No dog shall be deemed "vicious" if it bites, attacks, or menaces a trespasser on the property of its owner or harms or menaces anyone who has tormented or abused it or is a professionally trained dog for law enforcement or guard duties. Vicious dogs shall not be classified in a manner that is specific as to breed.
If a dog is found to be a vicious dog, the dog shall be subject to enclosure.
(C) “Enclosure” means a fence or structure of at least six (6) feet in height, forming or causing an enclosure suitable to prevent the entry of young children, and suitable to confine a vicious dog in conjunction with other measures that may be taken by the owner or keeper, such as tethering of the vicious dog within the enclosure. The enclosure shall be securely enclosed and locked and designed with secure sides, top, and bottom and shall be designed to prevent the animal from escaping from the enclosure. If the enclosure is a room within a residence, it cannot have direct ingress from or egress to the outdoors unless it leads directly to an enclosed pen and the door must be locked. A vicious dog may be allowed to move about freely within the entire residence if it is muzzled at all times. (510 ILCS 5/2.11a)
(D) “Impounded” means taken into the custody of the public pound in the Village or town where the vicious dog is found.
(E) “Found to Be Vicious Dog” means:
(1) that the County Veterinarian, Animal Control Warden, or a law enforcement officer has conducted an investigation and made a finding in writing that the dog is a vicious dog as defined in Section 3-1-2 and, based on that finding, the County Veterinarian, or the Animal Control Warden has declared in writing that the dog is a vicious dog or
(2) that the circuit court has found the dog to be a vicious dog as defined in Section 3-1-2 and has entered an order based on that finding.