"Thereafter IAC, on the directions of the minister, looked after the aircraft by carrying out basic maintenance on them, until after the coming into effect of RCC Resolution 369 when IAC treated the aircraft as part of its fleet and made what use of them it could in the prevailing circumstances. In particular, IAC used at least one of the aircraft for internal flights, and repainted at least two of the aircraft in the IAC livery. These matters throw light (inter alia) on the nature of the interference with the aircraft alleged by KAC in the points of claim.
Of these events, the basic maintenance carried out after the aircraft had been removed from Kuwait Airport seems to be of little or no significance. The essential things done which constitute the gravamen of the proceedings against I.A.C. are (1) the removal of the aircraft from Kuwait Airport to Iraq, and (2) the treatment of the aircraft by I.A.C. as part of its fleet after the coming into force of R.C.C. Resolution 369."
Lord Goff further said at p.1164 A-B:
"There remains the question (which may well be of no relevance) whether the acts performed by IAC in looking after the aircraft between the date of their arrival in Iraq and the coming into effect of RCC Resolution 369, involving no more than basic maintenance of the aircraft, constituted acts done by IAC in the exercise of sovereign immunity. On the assumption that these acts constitute acts of conversion and as such are of relevance in these proceedings, I would hold that, like the acts of IAC and in flying the aircraft out of Kuwait, these acts were still sufficiently related to the act of seizure of the aircraft by Iraq to amount to acta jure imperii and so would attract immunity under section 14 (2)."
"Upon arrival at the Iraqi airports of final destination, the IAC air crews parked the aircraft and simply left them at the stands to which they had been directed by the Air Force controllers Thereafter, until after RCC Resolution 369 . . . came into effect, IAC ground crews had nothing to do with the aircraft; indeed no one from IAC was involved in any activity concerning the [KAC] aircraft."
In the first place there is well established authority that where a final decision has been made by a court a challenge to the decision on the basis that it has been obtained by fraud must be made by a fresh action alleging and proving the fraud. Thus in Flower v Lloyd(1877) 6 Ch D 297 the Court of Appeal had allowed an appeal and dismissed a claim to restrain the defendants from infringing the plaintiff's patent. The plaintiff applied to have the appeal reheard on the ground that there had been fraudulent concealment of evidence. The Court of Appeal held that this could not be done. The plaintiff's remedy was by original action. The judgment was given partly on the basis that the Court of Appeal's jurisdiction under the Judicature Act 1873 did not include power to set aside its judgment on the basis of fraud, and partly on the basis that the former practice of requiring a fresh action to be brought to set aside a decree on the ground of fraud ought to be followed. In Cole v Langford[1898] 2 QB 36 the Divisional Court held that the court had jurisdiction in a subsequent action to set aside a judgment obtained before a judge and jury by fraud. In Jonesco v Beard [1930] AC 298 Lord Buckmaster, with whom other Members of the House concurred, said, at p 300:
"It has long been the settled practice of the court that the proper method of impeaching a completed judgment on the ground of fraud is by action in which, as in any other action based on fraud, the particulars of the fraud must be exactly given and the allegation established by the strict proof such a charge requires."
"Where a party to an action seeks to challenge, on the ground that it was obtained by fraud or mistake, a judgment or order that finally disposes of the issues raised between the parties, the only ways of doing it that are open to him are by appeal from the judgment or order to a higher court or by bringing a fresh action to set it aside."