Tex. Health & Safety Code § 81.066
(a) A person commits an offense if the person knowingly conceals or attempts to conceal from the department, a health authority, or a peace officer, during the course of an investigation under this chapter, the fact that:
Acts 1989, 71st Leg., ch. 678, Sec. 1, eff. Sept. 1, 1989.
Amended by Acts 2003, 78th Leg., ch. 198, Sec. 2.176, eff. Sept. 1, 2003.