I think all you would need in the legislation is a requirement for an annual report to Parliament. Then Parliament, on the basis of annual reports, could decide how satisfied or not they were with them. I think the main substance of such a report would partly be statistical—what is the information flow and how effectively is it being handled. Some part of that annual report should refer to the value of this initiative and provide cases—without providing the details, necessarily—where it has paid off, really to prove that this, on top of all kinds of other measures we've taken since 9/11, is a valuable instrument. So it's efficacy, plus propriety around how the initiative's powers were being used.
On October 24th, 2017. See this statement in context.