23Relief in respect of Colonial excess profits duty
(1)His Majesty may by Order in Council declare—
(a)that under the law in force in any of His Majesty's possessions excess profits duty is chargeable in respect of any profits in respect of which excess profits duty is also payable in the United Kingdom ; and
(b)that arrangements have been made with the Government of any such possession whereby, in respect of any profits, only the duty which is higher in amount is to be payable, and the amount of such duty is to be apportioned between the respective Exchequers in proportion to the amount of duty which would otherwise have been payable in the United Kingdom and in that possession respectively.
(2)Where any such Order in Council is made, then, if the Commissioners are satisfied that any case is one to which any such arrangements relate, they may, in lieu of any relief granted under paragraph 4 of Part I. of the Fourth Schedule to the principal Act, allow or make such remission or adjustments of duty as may be necessary to give effect to such arrangements, so, however, that the effect of such remission or adjustments shall not be less favourable than, the relief in lieu of which they are allowed or made.
(3)The obligation as to secrecy imposed by subsection (8) of section forty-five of the principal Act shall not prevent the disclosure to the Government of the possession concerned of such facts as may be necessary to enable such arrangements as aforesaid to be carried into effect.