Where it is brought to the attention of the president of the court, information showing that the conditions of article L. 640-1 have been met, he shall inform the Public Prosecutor’s Office by means of a note setting out the facts on which the referral to the court is based. The Chairman may not sit on the panel of judges or take part in the deliberations if the Public Prosecutor requests the opening of compulsory liquidation proceedings in respect of the debtor concerned, failing which the judgment will be null and void.