Investigatory Powers Bill

My Lords, can the Minister clarify for me—I am sure that other noble Lords have got to the point precisely—that the requirements that the Bill seeks to create will apply only where a service provider has offered a service which most people might assume is secure and encrypted but has built in an existing arrangement which allows it to access it? Would it apply only in those circumstances? If that is not the case, perhaps the Minister could explain in what other circumstances it might apply. Can he further tell us whether there is an expectation in the Bill that, where a service provider is developing a new service, it must ensure that it has the facility to access what the user would assume are encrypted data?