Exclusive: Dispatches and Channel 4 News reveal CCTV footage of the exchange between Andrew Mitchell and police officers that raises questions about the account in police logs leaked to the media.
As a new investigation is launched into allegations that Andrew Mitchell called police officers "plebs", Channel 4 News reveals the controversial email accusing the former chief whip of swearing.
After a Channel 4 News and Dispatches investigation questions the account recorded in a police log and results in calls for an investigation, Michael Crick answers the key questions on the row.
A diplomatic protection group police officer is arrested in connection with the Andrew Mitchell "plebgate" affair following fresh information.
Testimony of an anonymous woman in defence of a " plebgate" libel action brought by Andrew Mitchell against The Sun could be more evidence of a conspiracy against him.
MPs hit out at the police investigation into the Plebgate row, with one saying Andrew Mitchell was a victim of media spin "at the highest level" of the Met, and another suggesting Channel 4 take over.
Friends of Plebgate MP Andrew Mitchell are piling the pressure on Met Commissioner Bernard Hogan-Howe. Was he the source of leaks to journalists over the scandal?
Friends of Andrew Mitchell are pursuing Sir Bernard Hogan-Howe over whether he leaked details of a Scotland Yard report on Plebgate to journalists.
Former chief whip Andrew Mitchell makes a formal complaint to the Independent Police Complaints Commission (IPCC) over an alleged leak of the Met police report into the "plebgate" affair.
Former cabinet minister Andrew Mitchell sues The Sun newspaper over the "plebgate" row after it ran a story in which it claims the chief whip swore at police and called them "plebs".