Britain is to give £16m in aid to Rwanda after support for the country was suspended amid claims that its rulers were linked to militias accused of rape and murder.

Andrew Mitchell, the former Government Chief Whip at the centre of the “plebgate” scandal, will tonight accuse Downing Street officials of covering-up evidence showing he did not abuse police.

Paul McKeever, who led the Police Federation of England and Wales through one of the service's most challenging periods of major spending cuts and the "Plebgate" affair, has died in hospital.

The investigation into the Andrew Mitchell “Plebgate” affair was scorned today as a “waste of time and resources” by John Tully, the chairman of the Metropolitan Police Federation, after it emerged that more than 800 officers will be questioned over the scandal.

Police watchdog found staff also working as driving instructors or mystery shoppers

The institutions the public can rely on are rapidly dwindling, but still, this scandal in the police force is on a different scale

Below is an edited but uncorrected version of the email sent by the alleged eyewitness to the Conservative MP John Randall, accusing Andrew Mitchell of swearing at police officers.

The resignation of Andrew Mitchell was a rare victory for the Police Federation, which had been repeatedly rebuffed throughout 2012 during its battles against government reforms of pay and pensions.

Scotland Yard today vowed to “get to the truth” behind allegations that one of their police officers masqueraded as a member of the public to “frame” the former Government Chief Whip Andrew Mitchell.

CCTV footage and claims of fabricated evidence may exonerate Mitchell

Q. Why has a police officer been arrested over the Mitchell affair?

A police officer under investigation over claims he witnessed a row in Downing Street involving a Cabinet minister "wasn't there at the time", the Metropolitan Police Commissioner has said.

Scotland Yard was condemned last night for arresting a police officer on suspicion of leaking details of Andrew Mitchell's angry outburst when he was stopped from using Downing Street's main gates.