In this case, the Tribunal found the employee had not been dismissed depite the employer writing to the employee in these terms:
“Although your old Contract comes to an end on 21 April you are immediately reengaged under the new Contract whenever you sign it.”
The EAT disagreed. These words do amount to a dismissal, not a variation of contract.
The case contains an interesting trawl through the case law on what amounts to a dismissal in a dismissal and re-engagement context.