Police, the security services, the new National Crime Agency and HM Revenue and Customs would be able to access the data, but the draft Communications Data Bill also gives the Home Secretary the power to extend access to others, such as the UK Border Agency.

BBC: Computer keyboard and mouse

My best guess is that he will alight on the government's draft Communications Data Bill.

BBC: Gloves to come off in secret courts battle

In Britain, a draft Communications Data bill gives intelligence agencies even wider powers to intercept and store such data.

ECONOMIST: Data privacy: Out of shape | The