Sue Gray is the woman charged with looking into the most explosive allegations in politics in recent years.
She has been tasked with investigating whether there were repeated breaches of lockdown rules at Downing Street and other Whitehall departments when the UK was in lockdown.
Since allegations first came to light, the Prime Minister has admitted he was at an event on May 20, 2020. He told the Commons he stayed for 25 minutes and maintains he did not know an event was planned but said he should have ended it when he saw it was happening. Mr Johnson said he "believed implicitly" that it was a "work event".
