Article 23 of Law of Evidence

If the applicant substantiates his application, the court shall order production of the document immediately or at the earliest date it specifies. If sufficient proof of the validity of the application is not submitted to the court, the opposing party from whom the document is requested must swear an oath that it does not exist, or that he does not know of its existence or its whereabouts, and that he has not concealed it or neglected to search for it in order to deprive his opponent of relying on it as evidence. If the opposing party does not produce the document by the date specified by the court, or refuses to swear the aforementioned oath, the copy of the document submitted by the applicant shall be deemed authentic and consistent with its original. If he has not submitted a copy of the document, his statement concerning its form and subject matter may be accepted.