s 108 Forged document: proceedings in private
(1) This section applies where it is alleged— (a) that a document relied on by a party to an appeal under section 82 ... is a forgery, and (b) that disclosure to that party of a matter relating to the detection of the forgery would be contrary to the public interest. (2) The Tribunal — (a) must investigate the allegation in private, and (b) may proceed in private so far as necessary to prevent disclosure of the matter referred to in subsection (1)(b).