Massachusetts § 19B - Lie detector tests; use as condition of employment; penalty; civil action

Full text of Massachusetts Massachusetts General Laws § 19B — Lie detector tests; use as condition of employment; penalty; civil action, with citation guidance and answers to common questions.

§ 19B. Lie detector tests; use as condition of employment; penalty; civil action

Section 19B. (1) As used in this section the term ''lie detector test'' shall mean any test utilizing a polygraph or any other device, mechanism, instrument or written examination, which is operated, or the results of which are used or interpreted by an examiner for the purpose of purporting to assist in or enable the detection of deception, the verification of truthfulness, or the rendering of a diagnostic opinion regarding the honesty of an individual.

(2) It shall be unlawful for any employer or his agent, with respect to any of his employees, or any person applying to him for employment, including any person applying for employment as a police officer, to subject such person to, or request such person to take a lie detector test within or without the commonwealth, or to discharge, not hire, demote or otherwise discriminate against such person for the assertion of rights arising hereunder. This section shall not apply to lie detector tests administered by law enforcement agencies as may be otherwise permitted in criminal investigations.

(a) The fact that such lie detector test was to be, or was, administered outside the commonwealth for employment within the commonwealth shall not be a valid defense to an action brought under the provisions of subsection (3) or (4).

(b) All applications for employment within the commonwealth shall contain the following notice which shall be in clearly legible print:

''It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.''

(3) Any person who violates any provision of this section shall be punished by a fine of not more than one thousand dollars nor less than three hundred dollars. Second and subsequent violations of any provision of this section shall be punishable by a fine of not more than fifteen hundred dollars or by imprisonment for not more than ninety days, or both such fine and imprisonment.

In the case of a corporation, the responsible individual shall be the president, chief operating officer or any managerial or supervisory person who allows or condones such violation.

No waiver of the provisions of this section by an employee or prospective employee shall be a defense to either criminal prosecution or civil liability.

(4) Any person aggrieved by a violation of subsection (2) may institute within three years of such violation and prosecute in his own name and on his own behalf, or for himself and for other similarly situated, a civil action for injunctive relief and any damages thereby incurred, including treble damages for any loss of wages or other benefits. The total awarded damages shall equal or exceed a minimum of five hundred dollars for each such violation. A person so aggrieved and who prevails in such action shall be entitled to an award of the costs of the litigation and reasonable attorney fees.

Source: official Massachusetts text · Last verified 2026-08-27

Frequently Asked Questions About Massachusetts § 19B

What does Massachusetts General Laws § 19B cover?

Section 19B ("Lie detector tests; use as condition of employment; penalty; civil action") is part of the Massachusetts General Laws, the codified statutory law of Massachusetts. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Massachusetts § 19B?

A common citation format is "Massachusetts General Laws § 19B" (Massachusetts). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Massachusetts law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Massachusetts official source linked on this page or consult a licensed Massachusetts attorney.

How does Massachusetts § 19B apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Massachusetts can advise on how this section applies to you. Contact your state or local bar association for a referral.

Sources & Verification

Not legal advice. Verify against the official source and consult a licensed attorney in Massachusetts.