Labour will push for a vote on Boris Johnson's decision to 'water down' rules for ministers after it was made clear they would not automatically lose their jobs if they breach the Ministerial Code.
Sir Keir Starmer and his team plan to use an opposition day debate, when Parliament returns from its week-long break to mark the Queen’s Platinum Jubilee, to encourage Conservative MPs to vote and rebel against Mr Johnson’s changes.
It is traditional for ministers to resign or face the sack if they are found to have breached the code.
But a government policy statement said on Friday that this was a "disproportionate" expectation in the case of "minor" violations of the code.
Instead, the code has been updated, giving the prime minister the option of ordering a lesser sanction such as “some form of public apology, remedial action or removal of ministerial salary for a period."
Mr Johnson has drawn backing for allowing his independent adviser on the code, Lord Geidt, to mount investigations into possible violations on his own initiative.
Under the peer’s revised terms of reference, there will be an “enhanced process” to enable him to initiate inquiries, but he will still require the prime minister’s consent before going ahead.
Deputy Labour leader Angela Rayner accused Mr Johnson of acting like a “tinpot despot” with the revisions announced on Friday.
Ms Rayner said the prime minister’s new foreword to the code had removed “all references to integrity, objectivity, accountability, transparency, honesty and leadership in the public interest."
The changes come days after the final report by Sue Gray into lockdown parties at Downing Street led to renewed calls for Mr Johnson to resign.
The Tory leader faces an inquiry by the Commons Privileges Committee into whether he misled Parliament with his regular reassurances that Covid rules were upheld at No 10 during England’s lockdowns.
On the opposition day debate, Labour is set to ask MPs to enshrine the commitment that ministers who commit serious breaches of the ministerial code will have to resign.
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It comes after the Home Secretary was allowed to stay in post despite being found to have bullied Home Office staff.
Mr Johnson stood by Priti Patel in a move that saw Lord Geidt’s predecessor, Sir Alex Allen, resign in November 2020.
Labour aims to put Tories in an awkward situation after a similar vote on the government’s attempt to rip up Commons standards rules – in a bid to prevent former cabinet minister Owen Paterson from being suspended for lobbying – ended with accusations of sleaze levelled at Mr Johnson’s administration.
Ms Rayner said: “Boris Johnson is behaving like a tinpot despot and is trampling all over the principles of public life.
“Many decent Conservative MPs are deeply uncomfortable with Johnson’s behaviour and they now have the chance to stop his sinister attempts at watering down standards and integrity in our democracy.
“Serious breaches of the ministerial code must result in resignation, whether they are deliberately misleading Parliament, bullying staff, bribery or sexual assault.
“This prime minister simply cannot be trusted to uphold standards in government while his conduct sinks further into the gutter and he gives the green light to corruption.