Texas Government Code - GOV'T § 323.011. Subpoenas

(a) The council or a council committee may issue subpoenas to compel the attendance of witnesses and the production of books, records, or other documents in their custody.

(b) A subpoena must be signed by either of the joint chairs of the council.

(c) The council sergeant at arms or any peace officer shall serve the subpoena in the manner prescribed for service of a district court subpoena.

(d) If a person to whom a subpoena is directed refuses to appear, refuses to answer inquiries, or fails or refuses to produce books, records, or other documents that were under the person's control when the demand was made, the council or a council committee shall report the fact to a Travis County district court.

(e) The district court shall enforce a council or committee subpoena by attachment proceedings for contempt in the same manner the court enforces a subpoena issued by that court.

(f) A subpoenaed witness who attends a council hearing or meeting is entitled to the same mileage and per diem as a witness who appears before a grand jury of this state.