Tex. Nat. Res. Code § 88.094
No person may corruptly give, offer, or promise to give a member of the governmental agency, chief supervisor, deputy supervisor, or any agent or employee of the governmental agency a gift or gratuity with intent to influence the officer or person in his acts or conduct with respect to:
Acts 1977, 65th Leg., p. 2550, ch. 871, art. I, Sec. 1, eff. Sept. 1, 1977.