§ 90.061 REQUIREMENTS OF DANGEROUS DOGS.
   (A)   While on the owner’s property, a dangerous dog must be securely confined indoors or in a securely enclosed and locked pen or structure, suitable to prevent the entry of young children, and designed to prevent the animal from escaping. Such pen or structure must have a minimum dimension of five feet by ten feet and must have secure sides and a secure top. If it has no bottom secured to the sides, the sides must be imbedded into the ground no less than two feet. The enclosure must also provide protection from the elements for the dog.
   (B)   The owner or keeper shall display a sign on his or her premises facing out from all sides of the premises warning that there is a dangerous dog on the property. This sign should be visible and capable of being read from a public highway or thoroughfare or within 20 feet of its placement. In addition, the owner shall conspicuously display a sign with a symbol warning children who cannot read of the presence of a dangerous dog.
   (C)   A dangerous dog may be off the owner’s premises if it is muzzled and restrained by an approved lead or chain not exceeding three feet in length and is under the control of an adult, able-bodied person. The muzzle must be made in a manner that will not cause injury to the dog or interfere with its vision or respiration, but must prevent it from biting any person or animal.
   (D)   The provisions of this subchapter regarding dangerous and vicious dogs shall not apply to animals owned by law enforcement agencies and used for law enforcement purposes.
(1999 Code, § 3-3-7)