Tennessee Code Title 8. Public Officers and Employees § 8-6-402

(a) For these purposes, the attorney general and reporter is empowered to issue civil investigative demands to require the attendance of witnesses or the submission of documents, or both, at specified times and places, to give testimony in the case or matter therein stated. The demand shall mention the parties to the inquiry and the party at whose instance the witness is called, and, if necessary, require the witness also to bring any books, documents, or other writings, records or tangible objects under the witness' control, which may be pertinent to the inquiry.

(b) No witness called to testify or to produce records, books, documents, writings or other tangible objects under §§ 8-6-401--8-6-406 shall be required to testify in any county other than the witness' county of residence or the county where the records or tangible objects are found under the witness' control.