Immigration – Leave to enter. The tribunals' decisions, relying on MM and others v Secretary of State for the Home Department ([2013] All ER (D) 96 (Jul)), which had subsequently been reversed, had involved errors of law, of which those tribunals had understandably been unaware, and those errors had clearly been highly material to those decisions. Accordingly, the Court of Appeal, Civil Division, allowed the Secretary of State's appeal against decisions allowing the respondents' challenges to the refusal of leave to enter.