«On the grounds of lack of jurisdiction», he continued, «I think the Applicant has not satisfied this court that the high court judge
committed any jurisdictional error to warrant the intervention of the Supreme Court.
Already, the English courts have signalled a limited retreat from the advances widely thought to have been accomplished by Anisminic — in Cart the UK Supreme Court did not employ the concept of
jurisdictional error to determine how to control alleged illegalities
committed by the Upper Tribunal and preferred to rely on pragmatic considerations to limit the scope of review.