I know the noble Lord has long had an interest in these matters, because we served together some nine or 10 years ago on the Investigatory Powers Act. But he has to understand that, today, I cannot comment on operational matters relating to any issue, including neither confirming nor denying the existence of any notices. That is standard government procedure, and I cannot comment upon it. I know that I will, I am afraid, disappoint the noble Lord, but that is the answer I have to give him.