Tex. Alco. Bev. Code § 206.02

In a suit or claim by the attorney general for taxes due, he may attach or file as an exhibit a report or audit of a permittee or licensee with an affidavit made by the administrator or his representative stating that the taxes shown to be due by the report or audit are past due and unpaid and that all payments and credits have been allowed. Unless the opposing party files an answer in the same form and manner as required by Rule 185, Texas Rules of Civil Procedure, the audit or report constitutes prima facie evidence of the taxes due. The provisions of Rule 185 are applicable to a suit to collect taxes under this section.