Policeman serving on 1st April 1972 or ceasing to serve before 1st April 1973 who has less than 5 years' pensionable service
6.—(1) This paragraph shall apply in the case of a member of a police force who—
(a)received a relevant injury (within the meaning of Regulation B4) during a period of service which included 1st April 1972 or ended before 1st April 1973, and
(b)is entitled to reckon less than 5 years' pensionable service.
(2) In the case of such a member an injury pension shall be calculated and payable either in accordance with Part V of Schedule B (where the next following paragraph also applies, as modified thereby) or in accordance with Regulation 22 of the Police Pensions Regulations 1971(1) as from time to time amended (supplemental pension), whichever would have been the more favourable in his case if applied thereto when he first became entitled to the pension.