It is claimed Couzens was working at the American Embassy in Battersea on the day Miss Everard was taken.
Police arrested one of their own officers over the murder of Sarah Everard after a breakthrough from CCTV on a passing London bus as detectives also probe whether the suspect used his warrant card to lure her into his car after leaving work guarding the nearby US Embassy, it emerged today.
Scotland Yard are also said to be investigating whether Wayne Couzens, 48, used the current Covid-19 lockdown rules to stop the missing woman as she walked home to Brixton from her friend's home in Clapham, south-west London on the evening of March 3.
It was reported that neighbours noticed a Land Rover parked close to policeman Wayne Couzens' house in the historic town of Deal, and thought it was being watched by two men inside at around 5pm on Tuesday evening.
But it has been claimed today that Couzens, an armed diplomatic protection officer, worked a 2pm to 8pm shift guarding the US embassy close to Battersea Power station - less than three miles from where Miss Everard was last seen at 9.30pm.
The armed officer, who is part of the Met’s Parliamentary and Diplomatic Protection (PaDP) armed unit would have been picked up outside the embassy by a minibus and most likely taken to Charing Cross police station.
Once there, like all armed officers, he should have checked his firearm back into the armoury and headed to his locker to get changed.
He should not have gone home in full uniform. Instead, all officers are required to change into their civilian clothes.
MailOnline believes that the woods where the remains were found were known to him because Couzens' Ukrainian wife and their two children had visited for walks.
Sarah Everard: 'Murder suspect' Met officer found via CCTV from bus camera | Daily Mail Online