Tex. Code Crim. Proc. art. 31.07
Current with legislation from the 2023 Regular and Special Sessions signed by the Governor as of November 21, 2023.
When the venue in a criminal action has been changed, it shall not be necessary to have the witnesses therein again subpoenaed, attached or bailed, but all the witnesses who have been subpoenaed, attached or bailed to appear and testify in the cause shall be held bound to appear before the court to which the cause has been transferred, as if there had been no such transfer.
Tex. Code Crim. Proc. § 31.07