(1)Any deductions made from grants under section 31 of the 1964 Act for any period ended after 31st March 1980 and before the passing of this Act on account of common services expenditure shall be deemed to have been made in accordance with that section and any order made under it.
(2)In subsection (1) above “common services expenditure” means expenditure incurred by the Secretary of State under—
(a)section 41 (common services) of the 1964 Act, or
(b)section 44 (Police Federations) of that Act, or
(c)section 4 of the M1Police Act 1969 (Police Council for the United Kingdom) or section 1 of the M2Police Negotiating Board Act 1980.