R.I. Gen. Laws § 28-6.1-1: Lie detector tests prohibited.

(a) No employer or agent of any employer shall either orally or in writing request, require, or subject any employee to any lie detector tests as a condition of employment or continued employment.

(b) Written examinations as defined in § 28-6.1-4 may be used as long as the results of the written examinations are not used to form the primary basis for an employment decision.

(c) It is not a valid defense brought under this chapter that the lie detector test was administered outside the state for the purpose of employment within the state.