Mass. Gen. Laws ch. 266, § 118

Whoever, having the charge or custody of sheep, goats, cattle, horses, swine or fowl, wilfully suffers or permits them to enter or remain on or pass over any orchard, garden, mowing land or other improved or enclosed land of another, after being forbidden so to do in writing or by notice posted thereon by the owner or occupant thereof, or by the authorized agent of such owner or occupant, shall be punished by a fine of not more than ten dollars.