Tenn. Code Ann. § 40-17-202: Part definitions

As used in this part, unless the context otherwise requires:

(1) "State" includes any territory of the United States and the District of Columbia;

(2) "Summons" includes a subpoena, order or other notice requiring the appearance of a witness; and

(3) "Witness" includes a person whose testimony is desired in any proceeding or investigation by a grand jury or in a criminal action, prosecution or proceeding.