My Lords, the questions that have been asked are interesting. Times are changing, as is the nature of the threats. Who would have thought 30 years ago that we would be sitting here worrying about online grooming, ISIS terrorism and kidnapping or sophisticated cybercrime and money laundering? Who would have known that they were the challenges that would face us? Who would have talked 30 years ago about apps, internal emails—which we can get on our phones, according to some of my friends—and similar matters?
We will come back to issues of encryption. Technology is changing all the time, as is the modus operandi of those who wish us harm. Added to that, as I think my noble friend was alluding to, are the new powers in the Bill and the very welcome safeguards—the privacy measures and the double lock. These are new measures and we will want to see whether they achieve what the Government hope for them.
There are therefore two issues: first, how are the Government themselves going to monitor whether the Bill is achieving what they want; and, secondly, as alluded to by my noble friend, how will we then have formal post-legislative scrutiny to see whether they are what Parliament wants, and what is the correct time for that? The issues raised about reviewing these important powers and about the rapid change both in the technology and in the threats are ones that we want to be assured will be monitored and reported back on.