The mayor of a city and the selectmen of a town may, in cases of riot or great public excitement, order licensees under this chapter not to sell, give away or deliver any alcoholic beverages on the licensed premises for a period not exceeding three days at any one time. Whoever, himself or by his agents or servants, sells, gives away or delivers any such beverages in violation of an order given under the provisions of this section shall be punished by a fine of two hundred dollars, and upon conviction, his license shall be revoked by the licensing authority.
Massachusetts Legal Code