B10. The portion of a pension which a regular policeman may surrender under either Regulation B7 or Regulation B9 shall be limited as hereinafter provided, namely, it shall not be—
(a)in the case of any pension, such that the pension becomes payable at a rate less than two-thirds of the rate at which it would have been payable but for the provisions of the said Regulations and of Parts VII and VIII of Schedule B;
(b)in the case of a deferred pension, where the policeman has a guaranteed minimum in relation to the pension on the date on which it becomes payable, such that the weekly amount of the pension at that date, including any increase under the Pensions (Increase) Act 1971(1), is less than that guaranteed minimum;
and the limitation contained in sub-paragraph (b) is without prejudice to that contained in sub-paragraph (a).