Police and Justice Bill

My Lords, when we debated the matter a week ago, the noble Baroness made a most interesting speech, which I have had the benefit of reading several times. At the end of her speech, there was a passage that indicated that, since the ratification of the treaty, she had had some discussions with the American negotiators that gave messages of comfort as to how the treaty would be negotiated. I concluded by asking her a direct question: what was the status of those assurances? Did they have the force of law or were they merely a message of comfort? I have not heard from the noble Baroness since and she did not reply at the time, so I should be grateful if she could answer that question now.