“…marks to those of Staughton LJ can be seen in the speech of Lord Mustill in the case of l'Office Cherifien des Phosphates v Yamashita-Shinnihon Steamship Co Ltd[1994] 1 AC 486. That case was concerned with an arbitration where the problem as to the possible retrospective effect of the Arbitration Act 1950, as amended by the insertion…”
“…In L’Office Cherifien des Phosphates v Yamashita-Shinnihon Steamship Co Ltd [1994] 1 AC 486 the issue was whether in an arbitration the power to dismiss a claim for want of prosecution on grounds of inordinate and inexcusable delay which had been intr…”
“…he power of amendment. Modern authority (as reviewed and summarised by Lord Mustill in L’Office Cherifien des Phosphates v Yamashita-Shinnihon Steamship Co Ltd [1994] 1 AC 486, 524-525) has recognised that when the law raises a presumption against the retrospective operation of an enactment or a disposition (including a rule change),…”