“25 I have said that, as I see it, the raising of the argument that Mrs Sartipy wished to raise was an abuse of process, because if it was to have been advanced it could and should have been raised before (see Johnson v Gore Wood[2002] 2 AC 1 ). It is not, as the judge thought, a collateral attack on a previous decision of the court; it is a direct attack on the court's jurisdiction to make the order in the first place. Indeed it may well be that Mrs Sartipy is precluded from raising the argument by a cause of action estoppel (see Virgin Atlantic Airways Ltd v Zodiac Seats UK Ltd[2013] UKSC 46 ,[2014] AC 160 at paragraph [22]). 26 The principle is not simply one of justice between the parties but has a public dimension as well. The public dimension includes not bringing the administration of justice into disrepute, the public interest in the finality of litigation, and that part of the overriding objective which requires the court only to allot to an individual case an appropriate share of the court's resources while taking into account the need to allot resources in other cases (seeCPR Rule 1.1 (2)(b) ).”
"An abuse of process is of concern not merely to the parties but to the court. It is no longer the role of the court simply to provide a level playing field and to referee whatever game the parties choose to play upon it. The court is concerned to ensure that judicial and court resources are appropriately and proportionately used in accordance with the requirements of justice. If Dow Jones have caused potential prejudice to the claimant by failing to raise the points now pursued at the proper time, it does not follow that the court must permit this action to continue."
"In these days where there is such a pressure on the courts, a judge faced with an application or defence which he considers to be an abuse of process should at least require the point to be considered and decided."