10(1)Where a person is convicted of two murders tried together he shall not by reason thereof be sentenced to death by virtue of section six of this Act unless before he is sentenced the fact that the murders were done in Great Britain on different occasions is proved; and sub-paragraphs (3) and (4) of paragraph 8 of this Schedule shall apply for the purposes of this paragraph as they apply for the purposes of that paragraph.
(2)Where sentence of death is passed on a person convicted of two murders tried together, it shall be treated as passed in respect of each of the convictions; but if one of the convictions is and the other is not set aside on appeal, the court deciding the appeal, unless satisfied that the sentence remains warranted in law in respect of the other conviction, shall set the sentence aside and pass the appropriate sentence in substitution for it.