533. Review of certain naturalisation and citizenship decisions.

Where the Secretary of State1 makes a decision which is either a refusal to issue a certificate of naturalisation2 or a refusal to grant an application for registration as a British citizen3 and is certified by the Secretary of State as a decision that was made wholly or partly in reliance on information which, in the opinion of the Secretary of State, should not be made public in the interests of national security4, in the interests of the relationship between the United Kingdom5 and another country6