Massachusetts General Laws ch. 263A sec. 5 – Protective services provided to critical witnesses; notice to defense counsel
Section 5. Protective services provided to a critical witness may include, but not be limited to:—
(a) any necessary armed protection or escort, marked or unmarked surveillance or periodic visits or contact by law enforcement officials prior, during or subsequent to a criminal proceeding;
(b) physical relocation to an alternate shelter, housing or residence;
(c) reasonable housing expenses;
(d) transportation or storage of personal possessions;
(e) basic living expenses; and
(f) petition for a protective order on any individual identified as a threat to a critical witness.
Any protective services provided to a critical witness shall be made known to defense counsel pursuant to Rule 14 of the Massachusetts Rules of Criminal Procedure.