Not so united

27 July 2026

The breakdown in relations in the upper echelons of Unite has spawned a range of litigation, amongst which is Coppel J’s decision in Beckett v Graham & Unite the Union [2026] EWHC 1794 (KB) which is a useful consideration of the law of issue estoppel with a data law spin.

Howard Beckett, formerly Assistant General Secretary of Unite, was suspended on 3 August 2022. Within hours he received an email from a Sky News journalist who knew of the suspension and sought comment. Beckett’s position was that Sharon Graham, the General Secretary and/or Unite told Sky News of the suspension and supplied them with his letter of suspension. In earlier Employment Tribunal proceedings Beckett argued he had been constructively and unfairly dismissed. Amongst the six “strands” and multiple sub-allegations of that claim for determination by the ET was the issue of whether Unite had “systematically misused the Claimant’s private information”, the only identified instance of misuse being the alleged 3 August 2022 leak to Sky News. The ET found “no evidence of misuse of the Claimant’s private information” and, whilst there were “substantial grounds to believe that the Respondent may have, whether inadvertently or deliberately, at whose instigation we are not in a position to say, leaked communications regarding matters pertaining to [Beckett]” the ultimate conclusion of the ET was that, on the balance of probabilities, it was not possible to conclude that the leak had been effected by three named persons and so the alleged leak ground was dismissed (along with the rest of the claim). Beckett was granted permission to appeal to the EAT; the hearing will take place in 2027.

In the High Court, Beckett brought a claim for misuse of private information against Graham and Unite in relation to the same alleged 3 August 2022 leak. The defendants applied to strike out the claim as an abuse of process on the grounds that the claim was barred by issue estoppel.

The question before Coppel J was whether the ET findings regarding the alleged leak were “necessary and fundamental” to their ultimate dismissal of the claim in that the allegation was one of “ultimate facts which form the ingredients in the cause of action” (quoting Dixon J in Blair v Curran). In order for issue estoppel to apply, the determination of the earlier court must be “sufficiently clear and precise” (Megaw LJH in Turner v London Transport Executive) and must be “final and conclusive”. Further a “civil judgment is final and conclusive even though it can be appealed or is subject to a pending appeal”. A final consideration for Coppel J was whether there was sufficient privity of interest between Graham and the previous proceedings (those being in the ET and so brought solely against Unite).

On whether the leak allegation was sufficiently fundamental, Coppel J found that it was a central issue for determination in both proceedings and thus was capable of founding issue estoppel. Beckett argued that the finding regarding the leak allegation, forming only one strand of his claim, failed the necessary and fundamental test. Coppel J disagreed. The leak was one of the central breaches on which the constructive dismissal claim was built, it featured in the agreed list of issues and it could independently have founded a successful claim. The number of other issues determined by the ET did not detract from its status as part of the “immediate foundation” of the decision. Coppel J also found Graham had sufficient privity because she had been the focus of many of the allegations before the ET and was a de facto defendant in those proceedings.

The strike out application failed because the ET’s determination was insufficiently clear and precise for issue estoppel to arise in the High Court proceedings. Breaking down the finding of the ET across 8 sub-paragraphs, Coppel J found that the relevant ET findings did not mention the suspension letter leak directly. Coppel J also identified an unresolved tension between the ET finding there had been “no evidence of misuse of the Claimant’s private information” and the finding that there were “substantial grounds to believe the Respondent… leaked communication pertaining to [Beckett]”, a tension reconcilable only if the first element was directed to the named individuals said to be at fault rather than to Unite at large. Further the granting of permission to appeal the ET judgment opened up the possibility that the ET had erroneously concluded that, because it could not identify the person who had leaked information, Beckett’s claim on that ground must fail. Coppel J also determined that, even if he had concluded that the claim was subject to issue estoppel, he would have exercised his “narrow” discretion under CPR 3.4 to decline to strike out the case because of the ongoing appeal. As stated above, an outstanding appeal does preclude reliance on issue estoppel but this is a useful example that courts may be hesitant to conclude a matter is estopped due to an earlier determination where a relevant appeal is in train and that those reaching for an argument founded on issue estoppel will need to carefully examine whether the earlier finding is sufficiently clear, on point and unambiguous to warrant advancing an estoppel argument.

This case will be useful authority that an allegation is not debarred from giving rise to issue estoppel in a later case simply because it formed one pillar amongst many in an earlier claim. Increasingly claims before all manner of tribunals include allegations that data has been processed unlawfully, often as one allegation amongst many. Practitioners will need to be alive to the possibility that earlier court findings concerning data and information processing may bind their hands in later cases where data is a more central consideration and that data and information law claims could fuel other forms of litigation, be they in the ET or other fora. The more data proliferates in everyday life and the more it features in litigation, the greater the chances that this cross-pollination between cases will occur.

Beckett v Graham & Unite the Union [2026] EWHC 1794 (KB)