The mastermind behind Australia's migrant crackdown has called on Keir Starmer to 'reinstitute' the Rwanda scheme.

Alexander Downer told the Prime Minister to 'eat a bit of political humble pie' and resurrect the scheme, which was scrapped last year in one of Starmer's first acts after being elected into No 10.

Sir Keir insisted the deportation scheme was a £700million 'gimmick' which did nothing to cut migrant Channel crossings.

But Mr Downer, who was Australia's minister for foreign affairs from 1996 to 2007, claimed the move was a 'tragedy' and believes it could have worked if the legal issues surrounding it 'could be properly addressed'.

'It would have worked assuming the legal issues could be properly addressed — and they were being,' he told The Sun.