27. Where, in a proceeding the hearing of which had not been completed immediately before the commencement date—
(a) the Appeals Board required a person, by summons or otherwise, to produce a document within a specified period; and
(b) that period expired before the commencement date without the person producing the document;
the Administrative Appeals Tribunal may take any action in relation to the person's failure that it would be able to take had it required the production.