BORIS Johnson's ethics adviser quit after the UK Government put him in an "impossible and odious" position, his resignation letter to the Prime Minister has revealed.

Lord Christopher Geidt stepped down as Johnson's ethics tsar quit just days after he said it is “reasonable” to suggest the Prime Minister broke the ministerial code over coronavirus lockdown-busting parties in No 10.

He was the second person to resign from the post in two years, pouring further pressure on a Prime Minister who has already lost the confidence of more than 40% of his own MPs.

In his resignation letter, Geidt said he had been "tasked to offer a view about the Government's intention to consider measures which risk a deliberate and purposeful breach of the Ministerial Code".

In his reply, the Prime Minister said that this request related to "potential future decisions related to the Trade Remedies Authority".

Geidt said that the request had put him in "an impossible and odious position" and he was left with no choice but to resign.

The peer wrote: "The idea that a Prime Minister might to any degree be in the business of deliberately breaching his own Code is an affront. A deliberate breach, or even an intention to do so, would be to suspend the provisions of the Code to suit a political end.

"This would make a mockery not only of respect for the Code but licence the suspension of its provisions in governing the conduct of Her Majesty's Ministers. I can have no part in this ... I therefore resign from this appointment with immediate effect."

More to follow...