The Metropolitan Police has sacked two PCs with the Diplomatic Protection Group (DPG) over their behaviour after the Plebgate altercation.
They included Keith Wallis, who was imprisoned for a year earlier this month over an email he sent to an MP, in which he claimed to have been an independent bystander to the altercation between another officer and then-chief whip Andrew Mitchell (pictured) in Downing Street.
His colleague James Glanville was also sacked for leaking details of what happened to The Sun newspaper.
The Met said it had stopped paying Wallis on the day he was sentenced at the Old Bailey.
Mr Glanville was arrested in January 2013 at his work place, on suspicion of the unauthorised disclosure of information to the media.
He was not on duty at the gates of Downing Street on 19 September 2012 at the time of the incident but he was present at a DPG base later that night.
He later provided the newspaper a photo of an email sent by PC Toby Rowland – the officer Mr Mitchell allegedly called “Pleb”, which he got from another colleague who had been on duty at Downing Street that night.
The force said he subsequently lied about his actions in statements given to detectives from Operation Alice, the Met’s criminal investigation of what happened.
He had been suspended from duty since the time of his arrest.
Mr Mitchell attended both hearings as an interested party.
Three more officers are due to face gross misconduct hearings in connection with Plebgate and are expected to take place in April and May.