If, on the trial of a criminal case, it appears that a witness has induced the defendant to commit the crime with which he is charged with intent to appear as a witness against him, the court or magistrate may in his discretion refuse to allow him his fees.
Mass. Gen. Laws ch. 262, § 60
Witnesses' fees; refusal in certain cases
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.