I don't think she had any choice, and more will probably follow. After a week of repeatedly insisting there was no party and all rules were followed, the Prime Minister has now decided to find out what actually happened!!!! I suspect a few will be sacrificed to save his skin, with a promise they will be looked after and given another job when the storm has blown over.
If voters don't wake up to what a fraudster he is, this once-proud country will sink ever deeper in the cesspit.