Lisbon Treaty (No.1)

Why is the Home Secretary deliberately confusing the need for international co-operation in the war against terrorism and crime with the separate issue of whether we should hand over powers irrevocably to another law-making body? She has already seen the result of that in the promise by the Prime Minister to repatriate foreign nationals at the end of their sentence, which turned out to be incompatible with laws to which she had signed up in the European Union. If this House has already lost its powers to meet prime ministerial promises, why is she considering further laws to hand over more powers irrevocably to another jurisdiction?