Millen v Karen Millen Fashions Ltd & Anor

Amendments to pleadings should generally be allowed where they raise issues that overlap with the existing case and can conveniently be determined at trial, particularly where this promotes finality. The court should avoid deciding a disputed point of construction at the amendment stage if doing so may create arguments about res judicata or produce an unintended procedural advantage. An amendment may be allowed without a definitive identification of every right or factual instance to which it may apply where the issue is one of legal principle and the scope can be particularised later. The amendment jurisdiction remains subject to consideration of prejudice, delay and the effect on the trial timetable.

The claimant sought declarations concerning the meaning and effect of a share purchase agreement under which she had sold interests in a fashion business. The defendants counterclaimed that they could enforce restrictive covenants concerning intellectual property, competition and further assurances.

The defendants applied to amend their defence and counterclaim shortly before trial. The proposed amendments concerned future intellectual property rights and business activities, trading in China, and an alleged positive obligation to consent to trade mark registrations. The claimant opposed the amendments on construction and prejudice grounds. The central issue was whether the amendments should be permitted at that stage, rather than whether the defendants’ proposed construction of the agreement was correct.

The application to amend was granted.

1. Timing and overlapping issues. The proposed amendments raised issues that were already substantially present in the existing pleadings, including the alleged future effects of the share purchase agreement. It was therefore preferable for all related issues to be addressed together at trial.
2. Construction not determined on amendment application. The court declined to decide whether the agreement extended to rights acquired or business commenced after its date. That question overlapped with the existing pleaded case. Deciding it prematurely could give either party an unintended advantage and generate complex disputes about whether aspects of the pleaded case had become res judicata.
3. Particularisation and evidence. The issue was principally one of construction and legal principle. It did not require an exhaustive list of future rights or proof of every future activity before the amendment could be allowed. If the defendants succeeded on the legal issue, they could identify the particular rights relied upon thereafter.
4. Prejudice. The claimant’s anticipated need for extensive additional disclosure and evidence was not shown to create significant prejudice or imperil the trial date. The relatively late application was outweighed by the desirability of determining the relevant issues finally and together.
5. The court expressed no view on the merits of the competing constructions, including the proposed effect of the further assurance clause.