If a hearing authority or a district court has deemed a dog to be a dangerous dog and such dog wounds a person or worries, wounds or kills any livestock or fowl, the owner or keeper of the dog shall be liable in tort to the person injured by the dog for 3 times the amount of damages sustained by such person.
Mass. Gen. Laws ch. 140, § 159
Treble damages for injuries caused by dogs ordered to be restrained
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.