A few weeks ago, you had probably never heard of Sue Gray - but now she is one of the most talked about people in the country.
Ms Gray is the civil servant handed the unenviable job of investigating the reports of lockdown-breaking parties in Downing Street during the covid pandemic lockdowns.
The top civil servant is expected to drop her full report into Downing Street rule breaking any day now - and it could have huge ramifications for Boris Johnson's future.
Read more: Police called as couple's spa hotel stay erupts into angry row with staff
Ahead of that report being published, we've had a look at the remarkable number of events, incidents and parties that she is looking into.
Our colleagues at the Mirror have been responsible for breaking a number of those stories, and here they help us put together the extraordinary picture of events.
‘Wine time Fridays’ (throughout)
Downing Street staff reportedly held 'wine-time Fridays' throughout the pandemic with claims Boris Johnson regularly witnessed the gatherings.
Sources told the Mirror the Prime Minister encouraged aides to “let off steam” despite indoor socialising being banned under lockdown rules.
The regular event was reportedly so popular that staff even invested in a £142 drinks fridge to keep their bottles of white wine, Prosecco and beer cool.
Sources claimed aides took turns on Fridays to visit the local Tesco Metro in Westminster with a wheelie suitcase to fill up the 34-bottle capacity fridge.
May 15, 2020: Wine and cheese in No10 garden
On the day 421 people died, around 20 No10 staff including Boris and Carrie Johnson gathered in the sunshine in the Downing Street garden.
England was still in its first lockdown, with gatherings in gardens banned completely and a two-person limit on meeting in the park.
Boris Johnson insisted it was a meeting of “people at work, talking about work” despite the fact he was talking to his then-fiancée.
Among others in the photo were then-Health Secretary Matt Hancock and the PM’s top aide Martin Reynolds.
May 2020: BYOB party attended by Boris Johnson
The PM’s principal private secretary Martin Reynolds invited 100 No10 staff to “make the most of the lovely weather ” and “bring your own booze!”
Boris Johnson later admitted spending 25 minutes at the party, claiming he thought it was a work event but then refusing to answer further questions.
The Sunday Times reported there were 40 people and “long tables laden with drink, crisps, sausage rolls and other picnic food. It was a proper booze-up.”
Yards away 55 minutes earlier, minister Oliver Dowden told a No10 press conference: “You can meet one person outside of your household in an outdoor, public place - provided that you stay two metres apart".
June 19: Boris Johnson's birthday party
Boris Johnson was thrown a 'surprise' birthday party by wife Carrie during the first covid lockdown despite indoor social events being banned, it was claimed.
More than 30 officials gathered for the PM's birthday bash in the Cabinet Room for up to half an hour in the afternoon, according to ITV News.
Mrs Johnson led the staff in a chorus of happy birthday while the PM was presented with a cake, before tucking into picnic food from M&S.
Officials said to have been present at the party included Martin Reynolds, the most senior civil servant in the PM's office, who sent the explosive 'BYOB' party email. Interior designer Lulu Lytle, who was not a member of staff but was renovating the Downing Street flat, was also present.
A No 10 spokesman admitted: "A group of staff working in No 10 that day gathered briefly in the Cabinet Room after a meeting to wish the Prime Minister a happy birthday. He was there for less than ten minutes.”
Later that evening, the PM and his wife were said to have hosted family friends in their residence upstairs in an apparent further breach of the rules. Downing Street denied these claims - saying the PM hosted a small number of family members outside instead.
November 13: ‘Flat party’ on night Cummings quit
Sources told the Mirror No10 aides “drank their socks off" at an alleged gathering in Boris and Carrie Johnson’s flat above 11 Downing Street.
Staff reported hearing "loud music pumping out of the flat" late into the night after Dominic Cummings quit that night in a blaze of publicity.
The Mail on Sunday even described it at the time as a “victory party” celebrating the departure of Mr Cummings.
Mr Cummings has claimed there was a party in the flat on November 13 and “other flat parties” that should be investigated.
A spokeswoman for Mrs Johnson dismissed the claims as "total nonsense”, adding: "Mrs Johnson has followed coronavirus rules at all times and it is categorically untrue to suggest otherwise.”
England was in a national lockdown and that day the UK recorded 436 Covid deaths - the second-highest daily total since May.
November 13: Leaving drinks for Lee Cain in Downing Street
Sources told the Mirror a relatively small number of people gathered for drinks in No10’s ‘round table room’ to mark two top aides’ departure.
As well as Dominic Cummings walking out, the PM’s Communications Director Lee Cain left his job - on less hostile terms. He posed grinning with Mr Johnson and “Get Brexit Done” boxing gloves that night.
Sources suggested the PM gave a “shambolic” speech, everyone was gone by about 9pm and it was a relatively low-key affair.
November 25: Treasury drinks to celebrate Spending Review
Officials held impromptu drinks to celebrate Rishi Sunak's Spending Review during the November lockdown.
Around two dozen civil servants took part in the unplanned event, with wine and beer brought in, according to The Times.
Non-essential shops, bars and restaurants were still closed at the time due to lockdown rules. Mr Sunak was not present and was understood to have been unaware.
November 27: Leaving do drinks for Cummings ally
Sources told the Mirror 40 to 50 people crammed into a room in No10 for a leaving do for top aide Cleo Watson.
It is alleged there were drinks and a party which went on until late into the night - and Boris Johnson gave a speech.
No10 refused to comment on the claims, saying they will be investigated by Sue Gray.
Dominic Cummings claimed: “There was no party on Fri 27/11. Red herring. A staff member left their job. Walked to press office to say bye, PM bumbled in & started babbling, everyone embarrassed, dispersed.” He is an ally of Ms Watson.
Hours earlier Boris Johnson told a No10 press conference: “If we ease off now, we risk losing control of this virus all over again, casting aside our hard won gains, and forcing us back into a New Year national lockdown with all the damage that would mean.”
December 10: Party at the Department for Education
The Mirror revealed up to two dozen of then-Education Secretary Gavin Williamson's top team gathered for "drinks and canapes" in his department's café.
Susan Acland-Hood, the department's top civil servant, admitted she had been present and officials found to have broken the rules will face disciplinary action.
One source told the Mirror: "There were lots of people gathered in the café area, mingling and drinking wine. It was just so reckless".
Another source added: "He hosted a drinks do when people were considering whether they could spend Christmas with their families."
December 14: ‘Raucous’ party at Tory HQ
The Mirror published an extraordinary image of a “raucous” Christmas party thrown by Tory aides during Covid restrictions last Christmas.
It shows 24 people crowded together - in a blatant breach of lockdown rules - in a medium-sized room in the party’s Westminster HQ.
Some of the group are shown wearing paper hats while one is sporting a House of Commons Christmas jumper and a sumptuous spread of food sits on the side.
The event organised by top Tory Shaun Bailey's mayoral campaign, took place when London was in Tier 2 - which banned indoor socialising.
After he was approached by the Mirror, Mr Bailey dramatically quit as chair of the London Assembly’s police and crime committee.
Police later said they would speak to two people who were at the bash.
December 15: Boris Johnson hosts No10 Christmas Quiz
Boris Johnson hosted a Christmas quiz virtually but with two staff by his side, and sources said many stuff huddled by computers in No10 to take part while drinking booze from a local Tesco Metro.
London was then under Tier 2 regulations banning social mixing between households.
Official guidance also stated: “You must not have a work Christmas lunch or party, where that is a primarily social activity and is not otherwise permitted by the rules in your tier.”
December 16: Grant Shapps’ staff threw Christmas bash
Tory minister Grant Shapps ' staff threw a Christmas party in a Whitehall office the day London was plunged into Tier 3 restrictions.
The Transport Secretary denies all knowledge of the festive do, where senior civil servants were "boozing and dancing" after work from 5pm.
The same day, the Government imposed Tier 3 curbs on the capital, which saw pubs closed and banned people from different households mixing.
Senior staff from the Cabinet Minister's private office planned the rule-breaking bash and almost a dozen joined for the knees-up, sources claimed.
December 17: Woman who wrote Covid laws had leaving do
The official who was in charge of writing Covid rules admitted to having a leaving do while indoor socialising was banned.
Kate Josephs, the former Director General of the Covid Taskforce, was given a grand send off in the Cabinet Office "with drinks".
On December 16 London had moved to Tier 3 which banned all indoor mixing except in household bubbles.
Bars, pubs and restaurants were also closed and Brits were urged to work from home if they could do so.
She said: "I am truly sorry that I did this and for the anger that people will feel as a result."
December 18: The original No10 Christmas party
Party stories cascaded out after the Mirror broke the original tale of the No10 Christmas party.
No10 dodged questions for a week before bombshell video emerged of staff joking about it - prompting former Press Secretary Allegra Stratton to resign.
She had joked with colleagues that there had been “wine and cheese” and the Friday night bash was “not socially distanced”.
Officials knocked back glasses of wine and held a Secret Santa while the rest of the country was forced to stay at home.
According to later reports, people made speeches and stayed until 2am, with Boris Johnson not present but working a few rooms away in his office.
One source said: “It was a Covid nightmare."
The next day, Boris Johnson tore up planned Christmas bubbles and told the nation: “It is with a heavy heart that I must tell you we cannot continue with Christmas as planned.”
December 2020 (date unknown): Another leaving do for top aide
Boris Johnson attended a leaving do for his defence adviser in the run-up to Christmas 2020.
The Prime Minister gave a speech at an event to mark defence aide Captain Steve Higham’s Downing Street departure before Christmas.
It is understood the PM was “there for a few minutes to thank him for his service” as a “small number of No10 staff briefly said goodbye”.
The Ministry of Defence declined to comment.
December 2020 (date unknown): Department for Work and Pensions
It was reported that Work and Pensions Secretary Therese Coffey ’s staff drank alcohol late into the night in her private Whitehall office throughout the pandemic.
Political staff and officials are alleged to have frequently drunk alcohol after work until the early hours, and to order takeaway food to Ms Coffey’s DWP office - despite bans on hospitality and office parties.
A DWP insider said: “There is a constant flow of booze in the office.” At one such occasion in the run up to Christmas, Ms Coffey is accused of having given presents to her team.
December 2020 (date unknown): Parties investigator had party
Cabinet Secretary Simon Case had to recuse himself from probing parties after it emerged his own office held lockdown-busting parties last year.
Number 10 has insisted the Cabinet Secretary’s inquiry would be "credible" and "independent.
But reports on the Guido Fawkes blog revealed two parties - one planned, the second an impromptu gathering after work - took place in Mr Case's office at 70 Whitehall.
It's claimed a party organised by staff in his Private Office was attended by around 15 people and featured drinking and music.
While Mr Case was not "actively participating", it's claimed he was spotted "sticking his head into the room to call staff out at various points during the party to talk with them."
April 16, 2021: ‘Suitcase of wine’ party on eve of Philip’s funeral
On the No10 roof, the Union flag was flying at half-mast in mourning for Prince Philip - who the Queen would bury alone the next day.
But in the basement, a staffer nicknamed “DJ” was blaring out tunes from a laptop on a photocopier at a boozy party.
One No10 staffer was also dispatched to the Co-Op on the Strand, 10 minutes’ walk away, to fill a suitcase with wine.
