Professor Neil Ferguson will not face further action by police after accepting he made an "error of judgment" by breaching social distancing rules despite being a key figure in influencing the lockdown.
Scotland Yard criticised his behaviour as "plainly disappointing" but ruled out issuing a fine because he "has taken responsibility" after resigning as a key Government adviser in the coronavirus response.
The researcher, whose work was crucial in Boris Johnson's move to enforce strict conditions, stood down from the Scientific Advisory Group for Emergencies (Sage) after allowing a woman to visit him at his London home.
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