Texas Statutes
Article 24.28. Uniform Act to Secure Attendance of Witnesses From Without State
Section 2. Definitions

Sec. 2. DEFINITIONS. "Witness" as used in this Act shall include a person whose testimony is desired in any proceeding or investigation by a grand jury or in a criminal action, prosecution or proceeding.
The word "State" shall include any territory of the United States and the District of Columbia.
The word "summons" shall include a subpoena, order or other notice requiring the appearance of a witness.