“(i) whether the objective of the measure is sufficiently important to justify limiting a fundamental right; (ii) whether the measure is rationally connected to that objective; (iii) whether a less intrusive measure could have been used without unacceptably compromising achievement of the objective; and (iv) whether, having regard to these matters and to the severity of the consequences, a fair balance had been struck between the right of the individual and the interests of the community.”
“…Whilst an appellate court will always be cautious before allowing a new point to be taken, the decision whether it is just to permit the new point will depend upon an analysis of all the relevant factors. These will include, in particular, the nature of the proceedings which have taken place in the lower court, the nature of the new point, and any prejudice that would be caused to the opposing party if the new point is allowed to be taken.”
“Those cases also demonstrate the related point that the determination of whether an interference with a Convention right is proportionate is not an exercise in fact- finding. It involves the application, in a factual context (often not in material dispute), of the series of legal tests set out at para 24 [the Bank Mellat tests] above, together with a sophisticated body of case law, and may also involve the application of statutory provisions such as sections 3 and 6 of the Human Rights Act, or the development of the common law...”