The Home Secretary, Theresa May, is no stranger to ill-founded outbursts concerning the evils of human rights. Against that background, her recent article in the Mail on Sunday(to which Adam Wager has already drawn attention) does not disappoint. May’s ire is drawn by certain recent judicial decisions in which the deportation of foreign criminals has been ruled unlawful on the ground that it would breach their right to respect for private and family life under Article 8 of the European Convention on Human Rights. Some of these judgments, May contends, flout instructions issued to judges by Parliament about how such cases should be decided.

Those instructions consist of new provisions inserted last year into the Immigration Rules, the intended effect of which was to make it much harder for foreign criminals to resist deportation on Article 8 grounds. The Rules – made by the executive and endorsed…