application of the Ministry or prescribed authority concerned, allow further time to the Ministry or prescribed authority to deal with the request. (4) Notwithstanding the period of limitation mentioned in this section, the Ombudsman may, in his discretion, grant further time to the applicant if he is of the opinion that there has been no unreasonable delay in making the application. Burden of proof 38. In proceedings under this Part, the Ministry or prescribed authority to which or to whom the request was made has the onus of establishing that a decision given in respect of the request was justified or that the Ombudsman should give a decision adverse to the applicant. Powers of Ombudsman to make orders 39. In proceedings under this Part, the Ombudsman shall make such order as he thinks necessary having regard to the nature of the proceedings and, in particular, to the necessity of avoiding the disclosure to the applicant of exempt matter. Production of excempt documents 40.-(1) Where there are proceedings betore the ombudsman under this Act in relation to a document that is claimed to be an exempt document, and the Omhudsman is not satisfied, by evidence on affidavit or otherwise that the document is an exempt document, he may require the document to be produced for inspection by him only and if, upon the inspection, he is satisfied that the document is an exempt document, he shall return the document to the person by whom it was produced without permitting any other person to have access to the document or disclosing the contents of the document to any other person. (2) The Ombudsman may require the production, for inspection by him only, of an exempt document for the purposes of determining whether it is practicable for a Ministry or prescribed authority to grant access to a copy of the document with such deletions as to make the copy not an exempt document and, where an exempt document is produced by reason of such a requirement, he shall return the document to the person hy whom it was produced without permitting any other person to have access to the document, or disclosing the contents of the document to any other person. (3) Notwithstanding subsections (1) and (2) but subject to subsection (4), the Ombudsman is not empowered in any proceedings to require the production of a document in respect of which there is in force a certificate under section 22 or 23. (4) Where a certificate of a kind referred to in subsection (3) identifies a part or parts of the document concerned in the manner provided in section 22 (3) or 23 (3), subsection (3) of this section does not prevent the Ombudsman from requiring the production, in proceeding before him under this Act in relation to the document,of a copy of so much of the document as is not included in the part or parts so identified. Evidence of certificates 41. In proceedings before the Ombudsman under this Part, evidence of a certificate under section