They claimed holiday pay should be calculated on the basis of actual annual working days, rather than on the 365 days divisor which the force had been using.
A tribunal hearing initially went against the claim, but this was overturned on appeal.
The affected officers and staff now can expect to be paid monies owed from back to 1998, and the total bill is likely to top £40 million.
Lawyers for the Chief Constable had argued that payment was only due for three months prior to the case being brought, but this was dismissed by the appeal court judges, who accepted that the Chief Constable would be ‘unjustly enriched’ were this argument accepted.
Summary of Judgment - Court of Appeal determines that claims for holiday pay shortfall can be taken back to 1998