A former Whitehall ethics chief has reportedly been handed a Partygate fine over a lockdown karaoke bash in the Cabinet Office.
Helen MacNamara, who used to be the deputy cabinet secretary, is said to be among the first tranche of people slapped with a fixed-penalty notice by police as part of the probe into rule-breaking parties in Downing Street and Whitehall.
The senior civil servant was among the 20 people handed a £50 fine on Friday over a raucous gathering on June 18 2020, according to the Daily Telegraph.
Around 20 people were said to have attended the boozy leaving do for No10 official Hannah Young, which is said to have resulted in a drunken brawl.
Indoor social gatherings were banned in England at the time.
Ms MacNamara was the director general of propriety and ethics in the Cabinet Office from 2018 to 2020, where she led a probe into bullying allegations against Home Secretary Priti Patel.
She became deputy cabinet secretary in March 2020, before leaving Government to work for the Premier League last year.
The leaving bash on June 18 2020 was first revealed by Whitehall enforcer Sue Gray in her initial report on Partygate in January.
Staff reportedly did karaoke using a machine belonging to Ms MacNamara - despite people being advised at the time not to sing in public under Covid restrictions.
No10 was under fresh pressure to name officials fined for lockdown-busting Downing Street parties as it emerged that staff who attended two boozy bashes on the eve of Prince Philip ’s funeral last year were told they would be punished.
Separate gatherings for former Downing Street spin chief James Slack and a photographer took place on April 16 2021, with the gatherings later merging together.
Staff partied until the early hours in a seven-hour drinking session, when an official filled a suitcase with wine from a nearby Co-op and broke a swing belonging to the PM's young son Wilfred.
The following day the Queen sat alone at the funeral for her husband of more than 70 years.
Downing Street apologised to Buckingham Palace when the reports emerged.
Former minister Steve Brine urged No10 to identify those slapped with financial penalties by the Metropolitan Police.
“The best thing is just transparency, open the curtains,” he told the BBC.
“They should just be honest about who’s been tipped off with what and put it all out there and say, 'You know what, we got this wrong’, or, ‘This person’s got this fine’, because these guys in the press, they won’t focus on the issues of the local election, they’ll scratch around and try and dig all this stuff up again.
"Just be honest, and put it all out there - that would be my advice.”
Indicating No10 should also confirm if Boris Johnson ’s wife Carrie is fined, Mr Brine went on: “If you try and cover it over it will just continue as a story.”
Welsh Secretary Simon Hart said "of course" it does not sit comfortably with him that parties were being held in Downing Street during Covid restrictions.
But he told Sky News: "I have 65,000 constituents in west Wales, where I represent, and they are not shy in coming forward and expressing a view about this and a number of other subjects.
"And throughout all of this saga of the Downing Street parties they have said one thing very clearly, and in a vast majority they say they want contrition and they want an apology, but they don't want a resignation."
It has also been suggested by ITV News that Mr Johnson will not be interviewed by the Metropolitan Police as part of their "partygate" investigation.
This is because the force is not interviewing those who have received questionnaires as part of the inquiries, and could potentially be fined.
The Metropolitan Police is investigating 12 events, including as many as six that Mr Johnson is said to have attended, and has sent out more than 100 questionnaires.
Mr Johnson was sent a questionnaire but has so far not received a fixed penalty notice.
No 10 has said it will only confirm if Mr Johnson or Cabinet Secretary Simon Case are fined.
The PM is not said to have attended either the June 18 2020 gathering or the events on April 16 2021.
The Met declined to comment. The Cabinet Office also said it had nothing to add.