What happens now that the police are investigating allegations of lockdown parties at Downing Street?

A police officer knocks on the door of the Prime Minister’s official residence in Downing Street, Westminster, London. File Picture: Stefan Rousseau/PA

Scotland Yard has launched an investigation into potential breaches of coronavirus laws at a “number of events” in Downing Street and Whitehall.

But the development raises questions over what will happen as a result of the criminal probe.