In the trial of any case involving the compliance of an owner or caretaker with a provision of this chapter requiring the treatment or vaccination of livestock, a person may not attempt to prove that the action was taken by a person other than an authorized representative of the commission.
Tex. Agric. Code § 161.134
PROOF OF TREATMENT OR VACCINATION
Acts 1981, 67th Leg., p. 1404, ch. 388, Sec. 1, eff
Official source: Texas Constitution and Statutes. Reproduced from public-domain Texas statutes; confirm against the official source for the current text. Not legal advice.