Crime (Overseas Production Orders) Bill [HL]

My Lords, will the Minister confirm that, when a treaty is put to Parliament, if the House of Commons approves it, then it does not matter what the opinion of this House is; the treaty is ratified even if this House votes against it? I obviously agree with the noble and learned Lord, Lord Hope of Craighead, that whether this is a breach of the European Convention on Human Rights has yet to be tested in court—certainly not at the European level. Will the Minister explain why the then Foreign Secretary had to say that seeking death-penalty assurances in the ISIS case was unique and exceptional, if the Government were not concerned about people executed on the back of evidence provided by the United Kingdom?