It seems to me that the revelation of the latest party in Downing Street on 20 May 2020 puts the government in a nearly impossible situation. However much we may respect Sue Gray as a very senior and experienced civil servant, she has been given a pretty well impossible task of investigating more and more parties, with more and more evidence of malpractice appearing every day, and a requirement that she hands over her report to Simon Case who is her employer and the Prime Minister who is his. So, it will be impossible for her to be impartial.
The obvious thing at this juncture should be to hand it over to the police who must have access to all the evidence. But the police themselves have thus far refused to get involved and are themselves contaminated by not having forbidden or investigated the parties going on in the first place in spite of being in charge of security at 10, Downing Street.
So, what is to be done ? It’s hard to see.