The police officer jailed for 12months for his part in the Andrew Mitchell bike row has today(Wednesday) been dismissed from the Metropolitan Police Service(MPS).
Wallis, who now lives in West Drayton, was sentenced at the Old Bailey on February 6 having pleaded guilty to misconduct in a public office because of an email he sent to Uxbridge and South Ruislip MP Sir John Randall (Con), while he was living in Broadhurst Gardens, Ruislip.
In it, he falsely claimed he had witnessed an incident at Downing Street in September 2012, in which then chief whip Andrew Mitchell was accused of unleashing a foul-mouthed rant at police when they stopped him cycling through the street's main gates.
Mr Mitchell, pictured, admitted swearing during the incident but denies it was directly aimed at the officers as well as a claim that he called them plebs. He later resigned in order to try to clear his name.
At Wallis's misconduct hearing today, Assistant Commissioner Simon Byrne found the case against him proven as he had breached Standards of Professional Behaviour in relation to honesty and integrity, confidentiality, orders and instructions and discreditable conduct.
His misconduct hearing also considered that since at least June 2011 Wallis had been running a business interest that was not disclosed to the MPS.
The MPS stopped paying him on the day he was sentenced.
A second police officer, James Glanville, who like Wallis was an officer with the diplomatic protection group (DPG), was also dismissed from the MPS today after his gross misconduct case.
Glanville was not on duty at the gates of Downing Street at the time of the incident, but officers investigating under Operation Alice found evidence that later that evening he passed information about the incident to the Sun newspaper.
Andrew Mitchell attended both hearings as an interested party.