Mass. Gen. Laws ch. 140, § 168: Service of order to muzzle or restrain dogs; penalty

Section 168. The aldermen, board of selectmen or mayor may cause service of such order to be made upon the owner or keeper of the dog by causing a certified copy thereof to be delivered to him; and if he refuses or neglects for twelve hours thereafter to muzzle or restrain such dog as so required, he shall be punished by a fine of not less than $25.