[Press Association] Law enforcement agencies in the UK made thousands of requests for data on Facebook users in the last six months of 2013, according to results published by the social network.Between July and December 2013, there were 1,906 requests submitted to Facebook for user data related to criminal cases. These requests affected 2,277 different accounts, and Facebook revealed that more than 70% of these requests saw some data produced.
http://www.theguardian.com/technology/2014/apr/11/facebook-2000-data-requests-police