Tennessee Code Title 8. Public Officers and Employees § 8-6-403

Service of a civil investigative demand as described in § 8-6-402 must be made by a designated representative of the attorney general and reporter by any means permitted by the Rules of Civil Procedure.  Such process must run throughout the United States but does not require any witness to testify in any county other than the witnesses' county of residence or the county where records or tangible objects demanded are found under the witnesses' control.