Strict liability for the dog's damage
RSA 466:19 entitles any person to whom or to whose property damage may be occasioned by a dog not owned or kept by that person to recover damages from the person who owns, keeps or possesses the dog, unless the damage was occasioned to a person engaged in the commission of a trespass or other tort.
The statute is not limited to bites, and there is no one-bite rule. In Bohan v. Ritzo, the court held that the comparative fault statute applies to these claims, read as comparative causation.