Article 1, Section 5, Clauses 1--4
Massachusetts Constitution of 1780, PT. 2, CH. 1, SEC. 3, ARTS. 10, 11Thorpe 3:1899
Art. X. . . . They [the house of representatives] shall have authority to punish by imprisonment every person, not a member, who shall be guilty of disrespect to the house, by any disorderly or contemptuous behavior in its presence; or who, in the town where the general court is sitting, and during the time of its sitting, shall threaten harm to the body or estate of any of its members, for anything said or done in the house; or who shall assault any of them therefor; or who shall assault or arrest any witness, or other person, ordered to attend the house, in his way in going or returning; or who shall rescue any person arrested by the order of the house.
And no member of the house of representatives shall be arrested, or held to bail on mesne process, during his going unto, returning from, or his attending the general assembly.
Art. XI. The senate shall have the same powers in the like cases; and the governor and council shall have the same authority to punish in like cases: Provided, That no imprisonment, on the warrant or order of the governor, council, senate, or house of representatives, for either of the above-described offences, be for a term exceeding thirty days.
The Founders' Constitution
Volume 2, Article 1, Section 5, Clauses 1--4, Document 5
The University of Chicago Press
Thorpe, Francis Newton, ed. The Federal and State Constitutions, Colonial Charters, and Other Organic Laws of the States, Territories, and Colonies Now or Heretofore Forming the United States of America. 7 vols. Washington, D.C.: Government Printing Office, 1909.
Easy to print version.