37 Tex. Admin. Code § 28.46
An inmate may not be held past a statutory release date if the inmate fails or refuses to provide a blood sample or other specimen under this subchapter. A penal institution may take other lawful administrative action against an inmate who fails or refuses to provide a blood sample or specimen required by this subchapter.
Source Note:The provisions of this §28.46 adopted to be effective February 7, 2005, 30 TexReg 407.