"You will note that this appeal should have been submitted by Friday18 August 1995 . Regrettably we present it a week out of time. Accordingly we apply for an extension of time for appealing to today's date.
" The overriding duty of the court, of its own motion, is to satisfy itself that effect has been given to the immunity conferred by theState Immunity Act 1978 . That duty binds all tribunals and courts, not just the court or tribunal which heard the original proceedings. If the tribunal in the original proceedings has not given effect to the immunity conferred by the Act, then it must be the duty of the appeal tribunal to give effect to it by correcting the error. The alleged error of the tribunal cannot be corrected in this case unless an extension of time to appeal is granted to the employers. The employers have shown that there is a reasonably arguable case that the industrial tribunal failed to apply the law of state immunity correctly. That makes this an exceptional case for an extension of time."
"... public interest immunity ... is an issue which, if the facts are disclosed on which it could arise, must be considered, if necessary, by the court itself."
"is a rule on which the judge should, if necessary, insist, even though no objection is taken at all."
"it is the duty of the court to do this [ that is to prevent the disclosure of matters which in the national interest ought not to be disclosed ] without the intervention of any Minister if possible serious injury to the national interest is readily apparent."
"are ... strongly advised not to leave service of the notice of appeal until the last few days of the 42-day period. If they do, they run the risk of delay in the delivery of post or of the misdirection of mail."