Tex. Government Code § 432.164: PERJURY.

A person subject to this chapter who in a judicial proceeding or in a court of justice conducted under this chapter wilfully and corruptly gives, on a lawful oath or in any form allowed by law to be substituted for an oath, false testimony material to the issue or matter of inquiry is guilty of perjury and shall be punished as a court-martial directs.

Acts 1987, 70th Leg., ch. 147, Sec. 1, eff. Sept. 1, 1987.