Nationality – British nationality. The Administrative Court quashed the defendant Secretary of State's refusal of the claimants' application for naturalisation. The Secretary of State's exercise of her statutory discretion, under s 6(1) of the British Nationality Act 1981, to refuse the claimants' naturalisation because she wanted to deter potential extremists from their activities through knowing that family members would not be naturalised in consequence was beyond its scope and purpose.