As used in this article, "dangerous dog" means
a canine or canine crossbreed which has bitten, attacked or inflicted
injury on a person or killed another dog, and "vicious dog" means
a canine or canine crossbreed which has killed a person; inflicted
serious injury to a person, including multiple bites, serious disfigurement,
serious impairment of health or serious impairment of a bodily function;
or continued to exhibit the behavior which resulted in a previous
finding by a court that it is a dangerous dog, provided that its owner
has been given notice of that finding.