Trespassing, Provocation & Owner Knowledge

By the FigureMyTax Editorial Team · How we calculate

Even Arizona's strict liability statute isn't unconditional. A handful of real exceptions and defenses can reduce or entirely defeat an otherwise valid dog bite claim.

Trespassing removes strict liability

A.R.S. §11-1025 protects people in a public place or lawfully present on private property — "lawful presence" is specifically defined in A.R.S. §11-1026. If you were trespassing when bitten, strict liability doesn't apply, and you'd need to fall back on an ordinary negligence theory, which typically requires showing the owner acted unreasonably given what they knew or should have known about the dog.

Provocation

A.R.S. §11-1027 gives the dog's owner an affirmative defense if the victim provoked the dog — teasing, hitting, or otherwise antagonizing the animal immediately before the bite. The owner bears the burden of establishing this defense; it isn't automatically assumed.

Comparative fault still applies alongside strict liability

Even in a case where strict liability clearly applies, Arizona's pure comparative fault framework (A.R.S. §12-2505) can still reduce the victim's recovery if their own conduct contributed to the incident in some way short of full provocation. This is distinct from the provocation defense itself, which can defeat the claim entirely rather than just reducing it.

Narrow exceptions for working dogs

A.R.S. §11-1025 carves out specific exceptions for military and police dogs biting during law enforcement activities — these don't apply to an ordinary household pet, so they're rarely relevant outside cases directly involving a working police or military animal.

This is general information, not legal advice. Whether an exception applies depends heavily on the specific facts. Confirm how these defenses might affect your case with a licensed Arizona attorney.