(1) The Tribunal must carry out their functions in such a way as to secure that information is not disclosed to an extent, or in a manner, that is contrary to the public interest or prejudicial to national security, the prevention or detection of serious crime, the economic well-being of the United Kingdom or the continued discharge of the functions of any of the intelligence services.
(2) Without prejudice to this general duty, but subject to paragraphs (3) to (6), the Tribunal may not disclose to the complainant or to any other person other than Counsel to the Tribunal—
(a) any information or document disclosed or provided to the Tribunal in the course of a hearing under rule 10(1)(c);
(b) any information or document otherwise disclosed or provided to the Tribunal by any person pursuant to section 68(6) of the Act, or provided voluntarily by a person specified in section 68(7) ;
(c) any information, document or opinion provided to the Tribunal by a relevant Commissioner pursuant to section 68(2) of the Act;
(d) the fact that any information, document, or opinion has been disclosed or provided in the circumstances mentioned in sub-paragraphs (a) to (c);
(e) the identity of any witness at a hearing under rule 10(1)(c) or the fact that any witness was called.
(3) The Tribunal may disclose anything described in paragraph (2) with the consent of—
(a) in the case of sub-paragraphs (a) and (b), the person who disclosed or provided the information or document;
(b) in the case of sub-paragraph (c), a relevant Commissioner and, to the extent that the information, document or opinion includes information provided to a relevant Commissioner by another person, that other person;
(c) in the case of sub-paragraph (d), the person whose consent is required under this rule for disclosure of the information, document or opinion in question;
(d) in the case of sub-paragraph (e), the witness.
(4) Paragraphs (5) and (6) apply where—
(a) the Tribunal is prohibited by paragraph (2) from disclosing to the complainant something falling within sub-paragraph (a), (b), (d) or (e) of that paragraph, and
(b) the respondent refuses to consent to such disclosure, or a gist or summary thereof.
(5) The Tribunal may direct the respondent to make representations to the Tribunal which provide their reasons for withholding any document or information from the complainant.
(6) The Tribunal may, after considering any such representations, direct the respondent—
(a) to disclose to the complainant documents or information supplied to the Tribunal by the respondent, or
(b) to provide to the complainant a gist or summary of such documents or information.
(7) Where the Tribunal has directed the respondent under paragraph (6)—
(a) the respondent is not required to disclose to the complainant documents or information or (as the case may be) provide to the complainant a gist or summary, but
(b) if the respondent does not do so the Tribunal may—
(i) if they consider that anything required to be disclosed or provided might adversely affect the respondent’s case or support a complainant’s case, direct that the respondent is not to rely on such points in the respondent’s case, or that the respondent must make such concessions or take such other steps, as the Tribunal may specify, and
(ii) in any other case, direct that the respondent must not rely in the proceedings on anything required to be disclosed or provided.
(8) The Tribunal may also disclose anything described in paragraph (2) as part of the information provided to the complainant and respondent under rule 15(2), subject to the restrictions contained in rule 15(6) and (7).
(9) The Tribunal may, subject to the general duty imposed on the Tribunal in paragraph (1), disclose the fact that the Tribunal has held, or proposes to hold, a hearing under rule 10(1)(c) (in whole or in part) in private or in the absence of the complainant.
(10) The Tribunal may not order any person to disclose any information or document which the Tribunal would be prohibited from disclosing by virtue of this rule, had the information or document been disclosed or provided to the Tribunal by that person.
(11) Subject to paragraph (12), the Tribunal may not, without the consent of the complainant, disclose to any person other than Counsel to the Tribunal—
(a) any information or document disclosed or provided to the Tribunal by or on behalf of the complainant or the fact that any such information or document has been disclosed or provided;
(b) the identity of any witness called by or on behalf of the claimant or the fact that such a witness was called.
(12) The Tribunal may disclose the information provided by the complainant described in rule 8(2)(a) and (b) or, as the case may be, rule 9(2)(a) and (b).