Obviously, the Wilson doctrine applies to parliamentarians. It does not absolutely exclude the use of these powers against parliamentarians, but it sets certain requirements for those powers to be used in relation to a parliamentarian. It is not the case that parliamentarians are excluded and nobody else in the country is, but there is a certain set of rules and protocols that have to be met if there is a requirement to use any of these powers against a parliamentarian.
In relation to intercept, I mentioned the need for agreement from a Secretary of State. If the National Crime Agency wants to listen to the telephone calls of a drugs trafficker, or the security service wants to read the e-mails of a suspected terrorist, agreement is needed from a Secretary of State first. I see warrant applications day in, day out, and can personally attest to the care with which they are prepared, the seriousness which those applying for them attach to complying with the statutory restrictions and the gravity of the cases with which they deal. Warrant applications provide the detailed intelligence background that forms the basis on which a person is being sought.
Ministerial oversight, which I share with the Foreign Secretary and the Secretary of State for Northern Ireland, is a vital safeguard to ensure that this sensitive and intrusive power is used only when it is necessary and proportionate. But in the absence of explicit provisions in legislation, as has been mentioned in a number of interventions, some overseas companies have started to question whether the law applies to them. Indeed, as the Prime Minister said last week, some companies are already saying that they can no longer work with us on interception unless UK law is clarified immediately. This Bill does exactly that.