Mass. Gen. Laws ch. 272 § 89
Any officer authorized to serve criminal process, or any special police officer duly appointed by the colonel of the state police at the request of the Massachusetts Society for the Prevention of Cruelty to Animals, or any municipal officer involved with animal control may, without a warrant, enter any place or building in which there is an exhibition of any fighting birds, dogs or other animals, preparations are being made for such an exhibition, or birds, dogs or other animals are owned, possessed, kept, trained, bred, loaned, sold, exported or otherwise transferred in violation of section 94. Any such officer may arrest all persons there present and take possession of and remove from the place of seizure such animals there found in violation of said section 94, and hold the same in custody subject to the order of court as hereinafter provided.
Mass. Gen. Laws ch. 272, § 89