8.—(1) Where a regular policeman to whom Part II or Part III applies elects for the purposes excepted in Regulation 8(1) of the 1979 Regulations (calculation of widow's pension and child's allowance) as well as under that paragraph, the principal Regulations or, as the case may be, the old cases Regulations shall have effect as though he had been entitled immediately before his retirement (or death while serving) to reckon an additional amount of pensionable service calculated in accordance with Regulation 5 or 7, as the case may be, reduced—
(a)in the case of a regular policeman without pensionable service reckonable by virtue of service as a member of a police force or the Royal Ulster Constabulary before 1st April 1972, by 10%;
(b)in the case of a regular policeman with half-rate service (within the meaning of paragraph 1(1) of Part IV of Schedule 3 to the principal Regulations) before 1st April 1972, by 10%; and
(c)in any other case, by 7.5%:
(2) Where the additional period of pensionable service reckonable by a policeman falls to be reduced by reason of paragraph (1)(a)—
(a)Regulation 27(3) and paragraph 4 of Part I of Schedule 4 to the principal Regulations shall not apply in his case; and
(b)for the purposes of Part IV of Schedule 3 to the principal Regulations and Regulation 12 of the 1979 Regulations, any additional service reckoning by virtue of these Regulations shall be deemed to be half-rate and mixed rate service.