Northern Ireland Act 1998

20U.K.An appeal against a determination of a devolution issue by the High Court or the Court of Appeal on a reference under paragraph 15, 16, 17 or 18 shall lie to the [F1Supreme Court] , but only with [F2permission] of the High Court or the Court of Appeal or, failing such [F2permission] , with [F3permission] of the [F1Supreme Court] .