No dog shall be deemed vicious if it bites, attacks or menaces a trespasser on the property of its owner or custodian or harms or menaces anyone who has tormented or abused it or is a professionally trained dog for law enforcement or guard duties and bites, attacks, or menaces while on duty.
(Ord. 850, passed 6-5-95; Am. Ord. 1939, passed 7-16-18)