Tex. Civil Practice and Remedies Code § 140B.002

The attorney general or local prosecutor may file with the clerk of the district court in which an action is brought under this chapter a certificate stating that the case is of special public importance. The clerk must immediately furnish a copy of the certificate to the administrative judge of the district court of the county in which the action is pending. On receiving the copy of the certificate, the administrative judge shall immediately designate a judge to hear and determine the action. The designated judge shall promptly assign the action for hearing, participate in hearings, make determinations, and cause the action to be expedited.