Police Commissioner Bernard Hogan-Howe has resumed his Christmas break, Scotland Yard said. Earlier today, the police chief broke off from his holiday to be briefed on the progress of the 'plebgate' investigation, which is being supervised by the Independent Police Complaints Commission.
Britain's most senior police officer has promised a "ruthless" investigation into an alleged conspiracy against Andrew Mitchell.
Andrew Mitchell has written a piece in which he has accused the police of trying to destroy his career in a smear campaign.
Police investigating the row involving Andrew Mitchell have arrested a second man today. See how the "plebgate" events unfolded.