Tennessee Code Title 50. Employer and Employee § 50-1-311

(a) As used in this section, “voice stress analysis” means the use of a device that has the ability to electronically analyze the responses of an individual to a specific set of questions and to record the analysis, both digitally and on a graph.

(b) At any hearing or other employment procedure in which an employee is entitled to due process, no employer shall introduce the results of a voice stress analysis performed on an employee to prove misconduct by the employee.