Dominic Cummings was investigated by the police after breaching the Government’s own lockdown rules, according to reports.
The Prime Minister’s top adviser was spotted at his parents’ home in Durham – more than 250 miles away from his home in London – days after he was said to have started self-isolating.
An investigation by the Mirror and the Guardian said Mr Cummings was in the North of England, instead of isolating in London.
Mr Johnson and the UK goverment’s advice was: “You should not be visiting family members who do not live in your home.
“The only exception is if they need help, such as having shopping or medication dropped off.”
However, when police visited an address in the city they learnt that Mr Cummings had travelled to Durham from London during the lockdown to self-isolate.
Police spoke to family and reminded that travelling to be with relatives was breaching the advice of the government.
A spokesperson for Durham Constabulary said: “On Tuesday, March 31, our officers were made aware of reports that an individual had travelled from London to Durham and was present at an address in the city.
“Officers made contact with the owners of that address who confirmed that the individual in question was present and was self-isolating in part of the house.
“In line with national policing guidance, officers explained to the family the guidelines around self-isolation and reiterated the appropriate advice around essential travel”.
Days later, a neighbour of Mr Cummings’ parents claimed they saw him outside the property.
They claimed to have heard ABBA’s Dancing Queen blasting loudly.
After peering over the hedge, they saw Mr Cummings wearing a scarf and thick coat, and a small boy running around.
The neighbour, who wished to remain anonymous, said: “I got the shock of my life, as I looked over to the gates and saw him.
“There was a child, presumably his little boy, running around in front.
“I recognised Dominic Cummings, he’s a very distinctive figure.
“I was really annoyed. I thought it’s okay for you to drive all the way up to Durham and escape from London.
“I sympathise with him wanting to do that but other people are not allowed to do that.
“It’s one rule for Dominic Cummings and one rule for the rest of us.”