Strict Liability vs. the One-Bite Rule
The single biggest variable in a dog bite case is which liability standard applies. The two main approaches — strict liability and the one-bite rule — require you to prove very different things.
Strict liability
Under strict liability, an owner can be responsible for a bite even for a first-time offender and even without any carelessness, as long as the victim was lawfully present. You generally do not have to prove the owner knew the dog was dangerous — the bite and your lawful presence are the core. California uses this approach.
The one-bite (scienter) rule
Under the one-bite or scienter rule, you generally must show the owner knew, or should have known, the dog had a dangerous propensity — from prior aggression, complaints, or how it was kept. It is not a free first bite; it is about the owner's knowledge. New Mexico uses this kind of approach rather than a strict-liability statute.
The bottom line
Strict-liability claims are generally more straightforward, while scienter claims turn on proving the owner's knowledge. Which one applies depends on the state where the bite happened, and it shapes what evidence matters most.
Frequently asked questions
Which is easier to win?
Generally, strict-liability claims are more straightforward because you do not have to prove the owner's knowledge. Scienter claims require that extra proof, though prior aggression and complaints can establish it.
This is general information about Dog Bites injury claims, not legal advice. Every situation is different.
The law depends on your state
The steps above apply wherever you were hurt. Filing deadlines, fault rules, and limits on damages differ by state — pick yours for what applies to dog bites.
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