2.—(1) Where a person in receipt of an ordinary, short service, ill-health or deferred pension has been in service or employment otherwise than as a regular policeman—
(a)in respect of which he was subject to superannuation arrangements;
(b)by reason of which he is entitled to reckon pensionable service for the purposes of the pension; and
(c)the period of which includes a participating period of relevant employment,
then, for the purpose of abating the pension in relation to that participating period of relevant employment, any provision of the said arrangements in operation when he left the said service or employment the effect of which is that pensions payable thereunder are to be reduced in connection with the operation of the National Insurance Act 1959(1) or of any provision of the National Insurance Act 1965 relating to graduated contributions or graduated retirement benefit shall apply, subject to the necessary adaptations and modifications, as though the provision were contained in this paragraph and as if—
(i)the pension were payable under the said arrangements, and
(ii)any other period of service or employment by reason of which he is entitled to reckon pensionable service for the purposes of the pension were a period of non-participating employment at the end of which no payment in lieu of contributions falls to be made.
(2) A police authority, in determining any question arising under sub-paragraph (1) and relating to a particular service or employment, shall be entitled to treat as conclusive any relevant certificate issued, with the agreement of the person concerned, by his employer in that service or employment.
(3) Where for the purposes of the superannuation arrangements applicable to such service or employment as is mentioned in sub-paragraph (1) the person concerned was entitled to reckon service by reason of some previous service or employment, that previous service or employment shall be treated for the purposes of this paragraph as if it were part of the service or employment first mentioned in this sub-paragraph.
3.—(1) Where a person in receipt of an ordinary, short service, ill-health or deferred pension is entitled to reckon pensionable service for the purposes thereof by reason of a period of service as a regular policeman which is a participating period of relevant employment then, in respect of any period beyond state pensionable age, the unsecured portion of that pension shall be reduced in accordance with sub-paragraph (2).
(2) The reduction shall be calculated at the annual rate which is that of the graduated retirement benefit which would be payable to the pensioner, on the assumption that he retired from regular employment on attaining state pensionable age, in return for a payment in lieu of contributions in respect of the whole of the period referred to in sub-paragraph (1), whether or not such a payment was made.
4.—(1) Where a person in receipt of the secured portion of an ill-health pension, the unsecured portion of which has been terminated in the circumstances mentioned in Regulation K1(4), is also in receipt of some other pension, being an ordinary, short service, ill-health or deferred pension, and is entitled to reckon for the purposes of that other pension the period of pensionable service reckonable for the purposes of the ill-health pension then, in respect of any period beyond state pensionable age, the unsecured portion of that other pension shall be reduced in accordance with sub-paragraph (2).
(2) The reduction shall be calculated at the annual rate which is that of the secured portion of the ill-health pension.