Regulation 4 Interest on late payments
Where all or part of a sum—
(a)
becomes payable under the amendments contained in these Regulations on a date before the date on which these Regulations come into force, and
(b)
is or was not paid within three months of the date it became payable,
the police authority in question shall pay the amount or additional amount payable together with interest from the date that payment was due calculated at the rate of 5 per cent per year, compounded with yearly rests.