Tex. Code Crim. Proc. art. 16.21
Current with legislation from the 2023 Regular and Special Sessions signed by the Governor as of November 21, 2023.
Every sheriff shall keep safely a person committed to his custody. He shall use no cruel or unusual means to secure this end, but shall adopt all necessary measures to prevent the escape of a prisoner. He may summon a guard of sufficient number, in case it becomes necessary to prevent an escape from jail, or the rescue of a prisoner.
Tex. Code Crim. Proc. § 16.21