Whereas the provision already made by law for the preventing of routs, riots, and tumultuous assemblies and the evil consequences thereof has been found insufficient: § 1. Be it therefore enacted by the Senate and House of Representatives, in General Court assembled, and by the authority of the same, That from and after the publication of this Act, if any persons to the number of twelve, or more, being armed with clubs or other weapons; or if any number of persons, consisting of thirty or more, shall be unlawfully, routously, riotously or tumultously assembled, any Justice of the Peace, Sheriff …