Citizenship – British citizenship. The Secretary of State for the Home Department applied for the appeals, brought by appellants who had acquired British citizenship using false details, to be allowed by consent, having accepted that the appellants were British citizens by naturalisation under s 6(1) of the British Nationality Act 1981, and that that citizenship remained valid unless and until a formal deprivation order was made pursuant to s 40(3) of that Act. The Supreme Court agreed with the Secretary of State's reasoning and held accordingly, that the Court of Appeal's decisions in R v Secretary of State for the Home Department, ex p Parvaz Akhtar[1980] 2 All ER 735 and TB (Bangladesh) v Entry Clearance Officer[2007] All ER (D) 267 (Jul)had been wrongly decided and would therefore be overruled.