Immigration – Leave to remain. The Court of Appeal, Civil Division, gave guidance on the effect of 'supplementary letters/decision letters' relied on by the respondent Secretary of State. It held that, where in judicial review proceedings a court or tribunal held that the decision originally challenged in those proceedings was unlawful, it was open to it to consider whether a fresh decision to the same effect, made subsequent to the commencement of proceedings, was valid, for the purpose of deciding whether to order that the original decision be re-taken.