23b

(1) If a party obtains knowledge of inaccuracies in the statement of account that it has submitted to the President of the German Bundestag in due time and form, the party shall immediately report this fact to the President of the German Bundestag.
(2) If a party reports an inaccuracy, it will not be subject to the legal consequences specified in Article 31b or 31c if, at the date of receipt of the report, no concrete evidence of these inaccuracies was known publicly or was neither known to the President of the German Bundestag nor had been discovered in an official procedure and the party fully discloses and corrects the facts and figures. The unlawfully received financial benefits shall be returned to the President of the German Bundestag within a time limit he sets.
(3) Article 23a, paragraphs (5) and (6) shall apply mutatis mutandis.