D Cox v Adecco UK Limited & Ors
[2023] EAT 105
The decision to allow amendment is a matter of judicial discretion, considering all circumstances, including any injustice or hardship to either party.
Selkent Bus Co Ltd v Moore [1996] ICR 836, Cox v. Adecco UK Ltd & Ano. [2023] EAT 105, Vaughan v. Modality Partnership (EAT) [2021] ICR 535
The EAT will not readily interfere with an Employment Tribunal's decision on amendments unless it erred in legal principle, failed to account for relevant factors, considered irrelevant factors, or reached an unreasonable decision.
Selkent Bus Co Ltd v Moore [1996] ICR 836
In considering amendment applications, the focus should be on the extent to which the new pleading involves substantially different areas of inquiry compared to the original claim, not on formal classification.
Abercrombie v Aga Rangemaster Limited [2013] EWCA Civ 1148
An appeal based on irrationality requires an overwhelming case that no reasonable tribunal could have reached the decision.
Yeboah v Crofton [2002] IRLR 634 CA
Appeal dismissed.
The Employment Judge correctly identified and applied the appropriate legal test, considered all relevant factors (including delay, costs, and the nature of the proposed amendments), and reached a conclusion open to her in the circumstances.