Prosecutors will determine whether charges should be brought over the ‘Plebgate’ row after being passed all of the outstanding evidence in the case.
The row ignited when then chief whip Andrew Mitchell was accused of launching a foul-mouthed rant at officers guarding Downing Street as he asked to cycle through the main gates on September 19 last year.
Eight people including five police officers have been arrested as part of the Operation Alice investigation into what happened.
The five constables are from the Diplomatic Protection Group, which is responsible for guarding politicians and foreign dignitaries, and includes a 46-year-old woman present when the row broke out.
Two of the officers – the woman and a man who is also 46 – were arrested over alleged leaks to the media about what happened.
The members of police staff are two women aged 46 and 49 who were arrested on suspicion of assisting an offender, and a 23-year-old man who was held last December.
A Crown Prosecution Service spokesman said: “We have now received all of the outstanding evidence in this case and are now considering the file to determine whether charges should be brought.”
“We aim to make a decision as soon as is reasonably possible.”
Mr Mitchell, who resigned in the wake of the row, was alleged to have sworn at officers and called them “plebs” for making him walk through a side gate.
The former Tory chief whip denied using the language attributed to him and a Channel 4 investigation cast doubt on the officers’ account when it revealed CCTV footage which did not show tourists there as had been claimed.