Tex. Code Crim. Proc. art. 2.02
Current with legislation from the 2023 Regular and Special Sessions signed by the Governor as of November 21, 2023.
The county attorney shall attend the terms of court in his county below the grade of district court, and shall represent the State in all criminal cases under examination or prosecution in said county; and in the absence of the district attorney he shall represent the State alone and, when requested, shall aid the district attorney in the prosecution of any case in behalf of the State in the district court. He shall represent the State in cases he has prosecuted which are appealed.
Tex. Code Crim. Proc. § 2.02