Perhaps I can provide further clarification, although I am not sure that it will clarify matters much better. Clause 18 talks about,
“the economic interests of the United Kingdom or any part of the United Kingdom”.
Clause 62 of the Investigatory Powers Bill says,
“in the interests of the economic well-being of the United Kingdom so far as those interests are also relevant to the interests of national security”.
There is a variation in the drafting of the two Bills because the provisions serve entirely different purposes. It is right that where authority is being sought to
obtain communications data or to issue warrants for the purpose of the economic well-being of the UK, it should be done only where it is also relevant to the interests of national security. In Clause 18 of this Bill, the definition of “sensitive information” is intended to provide a safeguard to ensure that, whenever the IPCC handles particular types of information that originate from the security services or from government departments, it checks with the relevant authority before disclosing that information. The noble Lord does not look convinced but I hope that that has provided further clarification.