Tex. Code Crim. Proc. art. 39.07
Current with legislation from the 2023 Regular and Special Sessions signed by the Governor as of November 21, 2023.
Where depositions are taken under commission in criminal actions, the officer or officers taking the same shall certify that the person deposing is the identical person named in the commission; or, if they cannot certify to the identity of the witness, there shall be an affidavit of some person attached to the deposition proving the identity of such witness, and the officer or officers shall certify that the person making the affidavit is known to them.
Tex. Code Crim. Proc. § 39.07