R.I. Gen. Laws § 28-6.1-4: “Lie detector test” defined.

As used in this chapter the term “lie detector test” means any test utilizing a polygraph or any other device, mechanism, instrument, or written examination that 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.