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Massachusetts Dog Bite Law: Strict Liability Explained

Massachusetts holds dog owners strictly liable for bites in most cases. Here's what that means for victims.

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Massachusetts is a strict liability state for dog bites under M.G.L. c. 140, § 155. Unlike states with a 'one-bite rule,' an owner can be liable for a dog's first bite — the victim generally need not prove the owner knew the dog was dangerous.

Under the statute, the owner or keeper of a dog is liable for damages the dog causes, whether by biting or otherwise, unless the injured person was trespassing, committing another tort, or teasing, tormenting, or abusing the dog.

There is an important protection for children: a child under seven is presumed not to have provoked the dog, shifting the burden to the owner to prove otherwise. This reflects the serious risk dog attacks pose to young children.

Dog bite injuries can include deep puncture wounds, infections, nerve damage, scarring, and psychological trauma. Compensation can cover medical care, future reconstructive surgery, and emotional harm. Homeowner's or renter's insurance often provides coverage.

If you've been injured in Massachusetts, Injury Claim Team can connect you with an experienced personal injury attorney at no cost. Call 973-566-5599 any time for a free, confidential case review — there's no fee unless you win.

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