Tennessee Code Title 50. Employer and Employee § 50-3-302

(a) In making inspections and investigations under this chapter, the commissioner may issue subpoenas to require the attendance and testimony of witnesses and the production of evidence under oath.

(b) Witnesses shall be reimbursed for all travel and other necessary expenses that shall be claimed and paid in accordance with the prevailing travel regulations of the state.

(c) In case of a failure or refusal of any person to obey a subpoena issued under §§ 50-3-301 -- 50-3-306, the chancery court of the county in which the inspection or investigation is conducted shall have jurisdiction, upon application of the commissioner, to issue an order requiring the person to appear and testify or produce evidence as the case may require, and any failure to obey the order of the court may be punished by the court as contempt of the order.

(d) The name, job title and other information that may be used to identify a witness who is interviewed during the course of an investigation shall be considered confidential and shall not be a public record pursuant to title 10, chapter 7.