If the liberty and custody judge does not authorise the person’s statements to be taken without his identity appearing in the proceedings, the request and the decision of this magistrate, as well as, where applicable, the opinion of the public prosecutor, the record of the hearing and the report provided for in the second and third paragraphs of Article R. 53-27 are placed in a file separate from the case file, which is kept by the public prosecutor. This file may not be disclosed as part of the ongoing proceedings, unless the person subsequently agrees to testify without benefiting from the provisions of l’article 706-58; other than in this case, this file is destroyed at the request of the public prosecutor once the statute of limitations has expired. The public prosecutor will draw up a report of this destruction.