On pain of inadmissibility, the party or third party to the proceedings who invokes the protection of business secrecy for a document whose communication or production is requested shall provide the judge, within the time limit set by the judge:
1° The full confidential version of the document;
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2° A non-confidential version or a summary;
3° A statement specifying, for each item of information or part of the document in question, the reasons why it is a business secret;
The judge may hear the holder of the document separately.
The judge may hear separately the holder of the document, assisted or represented by any authorised person, and the party requesting the communication or production of this document.