2011 England riots the maker of the BlackBerry, are reported to have contacted the police to offer help in investigating the use of their system for the organisation of riots. According to "The Independent", the costs to the Metropolitan Police of policing the disorder and disturbances in London are expected to exceed £34 million. This could be more than their total bill for the policing of all major public disorder events in the year from April 2010 to March 2011. By 15 August 2011 around 3,100 people had been arrested, of whom over 1,100 had appeared in court. On 25 August the BBC
The X Factor (UK series 12) presented by Caroline Flack and Olly Murs, who had both previously co-presented spin-off show "The Xtra Factor" on ITV2 and replaced Dermot O'Leary, who left after eight series. Rochelle Humes and Melvin Odoom presented "The Xtra Factor", replacing Sarah-Jane Crawford. Louisa Johnson was announced as the winner on 13 December 2015, making Ora the winning mentor. In March 2015, Simon Cowell was confirmed to return as a judge for the twelfth series, his ninth on the show. In April 2015, Louis Walsh cited his desire to quit the show and return to management, and that it would take serious thought