Sue Gray has gone from an influential but little-known arbiter of conduct in Government to a household name in the space of five months.
She took on the civil service investigation into allegations of coronavirus rule-breaking at No 10 in December, and Downing Street is braced for the Cabinet Office official’s long-awaited report.
Before the Metropolitan Police completed its own inquiry into so-called partygate claims, which saw Boris Johnson fined for contravening Covid laws, Ms Gray was seen as holding the fate of the Prime Minister in her hands.