No person shall be required to attend as a witness in a civil case or for the defendant in a criminal case except a person summonsed to attend as a witness for an indigent defendant in a criminal case, unless the legal fees for one day's attendance and for travel to and from the place where he is required to attend are paid or tendered to him.
Mass. Gen. Laws ch. 233, § 3
Witness fees; payment or tender
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.