BBC News - Draft Communications Bill: May says web monitoring will save lives

[Ian Batten]

http://www.bbc.co.uk/news/uk-politics-20157059

> Of the 30,000 estimated cases last year where the police made an urgent request for communications data, between 25% and 40% of them resulted in lives being saved.

More than ten thousand lives a year being saved by urgent requests for communications data.  Impressive.  But I bet you that the vast majority are reverse DQ and location data on 999 calls, which I don't think anyone rational is attempting to prevent.

ian