Mass. Gen. Laws ch. 39, § 17: Powers of moderator; preservation of order

Section 17. No person shall address a town meeting without leave of the moderator, and all persons shall, at the request of the moderator, be silent. If a person, after warning from the moderator, persists in disorderly behavior, the moderator may order him to withdraw from the meeting, and, if he does not withdraw, may order a constable or any other person to remove him and confine him in some convenient place until the meeting is adjourned.