A second man has been arrested in connection with the Andrew Mitchell “plebgate” investigation.
The 23-year-old, who is not a member of police staff, was held on Wednesday night and has been released on bail. This follows the arrest of a police officer on Saturday.
Mr Mitchell quit as chief whip after it was alleged he called Downing Street police “plebs”, which he denies.
CCTV footage has cast doubt on the original police accounts of the row.
The man was arrested in north London at around 20:00 GMT on Wednesday “on suspicion of intentionally encouraging or assisting an offence of misconduct in a public office on or around last Friday”. His home was also searched.
BBC home affairs correspondent Danny Shaw said this had been “about the time police received fresh information about it [Plebgate]”.
Prime Minister David Cameron, speaking during a visit to Afghanistan, said a “full-scale police investigation”, supervised by the Independent Police Complaints Commission, was needed.
“I think that’s very important. Let’s get to the truth,” he said.
Private security company G4S is about to sign a deal which would see it building and staffing the first British police station run by a private security contractor.
The deal with Lincolnshire Police Authority – expected to be signed within days – represents the most radical outsourcing of law enforcement so far, according to a report last week in the Financial Times .
The contract will see G4S take over jobs previously handled by police officers including custody and ID duties (but with custody sergeants still on hand), control room staffing, town enquiry officers, the crime management bureau, the criminal justice unit and firearms licensing.
But Simon Reed, vice-chair of the Police Federation, told the FT that he had some reservations about the scheme, as private employees may not have the same enshrined sense of public duty as police officers.
“Our concern is the resilience of the companies doing this,” he said. “When we have national emergencies or unforeseen events, will they be able to bring their staff in to work long hours, regardless of what their contracts say?”
The police station move is part of a £200m contract with G4S over 10 years. Other police forces are said to be considering similar moves.
In a joint statement announcing the contract last December , Lincolnshire Police Authority chairman Barry Young and chief constable Richard Crompton said:
“Over the period of the contract this new approach will make significant savings, whilst also providing investment in key areas like IT infrastructure. The subsequent streamlining of processes will free up officer time to concentrate on operational policing. Read More