A final judgment or order rendered in any civil or criminal proceeding brought by the Attorney General under this Act to the effect that a defendant has violated this Act shall be prima facie evidence against such defendant in any action for damages brought by any other party against such defendant under subsection (2) of Section 7 of this Act, as to all matters respecting which said judgment or order would be an estoppel as between the parties thereto: Provided, that this Section shall not apply to civil consent judgments or orders entered before any testimony has been taken.
740 ILCS 10/8