Art. 24.02. SUBPOENA DUCES TECUM.  If a witness have in his possession any instrument of writing or other thing desired as evidence, the subpoena may specify such evidence and direct that the witness bring the same with him and produce it in court.
Acts 1965, 59th Leg., p. 317, ch. 722, Sec. 1, eff. Jan. 1, 1966.