“The power under review is an unusually strong one in international terms. It extends further than the laws of most comparable countries in Europe, North America or Australasia. Yet it has so far attracted less controversy than the recent introduction of more limited powers in Australia, Canada and France. This is, perhaps, a reflection of underlying attitudes to citizenship – or of the fact that the power under review largely replicates one that was used in the UK prior to 1974 and remained on the statute book until 2002. Since the power under review was only recently enacted by Parliament and has not yet been used, [he] make[s] no specific recommendations in this report as regards its operation. It remains to be seen whether the power will be used in future – or, if used, whether it will be of any practical benefit in the global fight against terrorism. Some possible reasons for scepticism are outlined in [the report].”