by a majority of eight to three. the presiding judge, lord neuberger, said: "the uk's constitutional arrangements require such changes to be clearly authorised by parliament." and he went on: "to proceed otherwise would be a breach of settled constitutional principles stretching back many centuries." but the supreme court decided unanimously that the devolved administrations in scotland, wales and northern ireland did not need to give their approval for the brexit process to start. we'll be discussing the implications of this with the snp‘s mike russell a little later. so the defeat for theresa may means there will need to be a vote in both houses of parliament at westminster before the brexit talks can begin. our political correspondent carole walker has the latest. this was a case with profound implications. who should decide the process for taking the uk out of the eu? the decision, taken by 11 of the most seniorjudges in the land, was delivered to the hushed courtroom.