Boris Johnson warned Covid inquiry legal funding could be withdrawn

Boris Johnson has been warned public funding for his legal representation to the Covid inquiry could be withdrawn if he tries to "undermine" the government.

Extracts of a Cabinet Office letter published in the Sunday Times tells the former PM to submit witness statements to officials for potential redactions.

It comes as the Cabinet Office fights the inquiry's demand to see unredacted messages from Mr Johnson and officials.

Mr Johnson has said he would give the material to the inquiry directly.

The Cabinet Office confirmed the letter to Mr Johnson had been sent last week. But it is understood it was not issued in response to any other event and a government source said it had not been seen by ministers.

In the letter, the Cabinet Office said: "The funding offer will cease to be available to you if you knowingly seek to frustrate or undermine, either through your own actions or the actions of others, the government's position in relation to the inquiry unless there is a clear and irreconcilable conflict of interest on a particular point at issue."

It said funding would only be available if Mr Johnson complied with certain conditions.

These included having to send any witness statement or exhibit which he intended to provide to the inquiry to the Cabinet Office to be security checked, and not submitting evidence until he had "applied any redactions" which the Cabinet Office had informed him were "needed before submission".

A Cabinet Office spokesperson said the letter in "no way" prevented Mr Johnson from providing the inquiry with "whatever evidence he wants to".

The spokesperson said it was a letter from officials which was "intended to protect public funds" and "simply reiterates that taxpayer-funded lawyers must be used to aid the Covid inquiry and for no other purpose".

The Cabinet Office said it made clear Mr Johnson had "a duty to provide sincere witness to the inquiry independently and without reference to the views of the current government".

The legal challenge to the inquiry's demand for Mr Johnson's WhatsApp messages and documents from during the pandemic was launched this week.

The Cabinet Office refused to disclose some of the material by arguing it was not relevant to the inquiry, it would compromise ministers' right to privacy, and would set a precedent that could prevent ministers discussing policy matters in future.