Mass. Gen. Laws ch. 85, § 19: Leading, driving, or conveying dangerous wild animals on public ways

Section 19. Whoever leads or drives a bear or other dangerous wild animal or causes it to travel upon or be conveyed over a public way unless properly secured in some covered vehicle or cage shall be punished by a fine of not less than five nor more than twenty dollars. Any such animal which is found upon a public way not so secured or caged may be killed by a sheriff, constable or police officer.