Keir Starmer, the leader of the Labour Party and the man on course to be the next Prime Minister, has committed himself to bringing forward a Bill to legalise “assisted dying”, the contemporary euphemism for assisted suicide or euthanasia.

In a telephone call filmed by ITV,Mr Starmer assured Dame Esther Rantzen, a cancer sufferer campaigning for doctors to be given more powers to kill their patients, that “I’m personally in favour of changing the law”.

“I think we need to make time,” he said. “We will make the commitment. Esther, I can give you that commitment right now.”