The Animal Control Supervisor or designated animal control officer is authorized to determine whether a dog is vicious, and shall be guided by the following criteria:
(1) whether or not the dog has bitten any person at any other time;
(2) the circumstances surrounding the occasion indicating the temper or ferocity of the dog;
(3) the reputation of the dog in the community with regard to its temper and ferocity;
(4) its propensity to bite persons or animals without provocation or
(5) its general menace to the public. The Animal Control officer need not consider whether the dog in question has been vaccinated and licensed as required by this Title.