Dominic Cummings travelled thousands of miles from London to County Durham for the length of the lockdown when he had coronavirus symptoms.
Mr Cummings and his wife went to his other folks’ residence to self-isolate, a source conclude to the PM’s chief aide told BBC’s political editor Laura Kuenssberg.
The source insisted Mr Cummings didn’t ruin actual guidance since the couple stayed in a separate constructing.
The memoir change into first reported by the Ponder and Guardian newspapers.
Labour acknowledged No 10 desired to manufacture a “very swift explanation” for Mr Cummings’ actions.
“If appropriate, the high minister’s chief adviser seems to non-public breached the lockdown principles. The federal government’s guidance change into very good: defend at residence and no non-needed stir,” a spokesman acknowledged.
“The British folk compose no longer interrogate there to be one rule for them and one other rule for Dominic Cummings.”
The Scottish Nationwide Regain collectively’s Westminster chief Ian Blackford acknowledged Mr Cummings need to unruffled resign or be brushed off by Boris Johnson and that it change into a “key take a look at of leadership” for the PM.
And Ed Davey, appearing chief of the Liberal Democrats, added: “If Dominic Cummings has broken the pointers he’ll non-public to resign, it is a long way as easy as that.”
No 10 declined to touch upon Friday evening.
The Ponder and the Guardian reported Mr Cummings, the former Vote Leave chief who change into the architect of the PM’s Brexit technique, had been approached by the police.
Durham Constabulary acknowledged: “On Tuesday, March 31, our officers were made responsive to reports that an individual had travelled from London to Durham and change into fresh at an tackle in town.
“Officers made contact with the dwelling owners of that tackle who confirmed that the person in interrogate change into fresh and change into self-environment apart in fragment of the dwelling.
“Essentially based completely on national policing guidance, officers explained to the family the pointers round self-isolation and reiterated the suitable advice round needed stir.”
By Leila Nathoo, political correspondent
At the time Dominic Cummings had coronavirus, there change into simplest a restricted location of causes for which participants were allowed to leave their homes.
And the advice for somebody with symptoms change into – and is – now to no longer leave residence at serious about at the least seven days.
Keep in mind there non-public already been other senior figures concerned about tackling the pandemic who non-public needed to resign for breaching lockdown restrictions – Scotland’s Passe Chief Scientific Officer Catherine Calderwood and a main scientist Professor Neil Ferguson, who change into advising the government.
A source conclude to Dominic Cummings is insistent that he didn’t ruin the guidelines.
However for these at the tip to be perceived to even be stretching the guidelines is negative.
Along side triggering accusations of hypocrisy, it risks prompting folk to interrogate why they wants to be following the guidelines, if these concerned about imposing them are no longer.
‘Put at residence’
Executive advice on 31 March change into for the general public to defend at residence and simplest leave their tackle for clearly outlined causes, along with to deliver, needed attempting or for scientific wants.
At the time – and as stays the case – these with symptoms of coronavirus are told to self-isolate at residence and no longer leave even for needed gives, if seemingly, for seven days.
The source conclude to Mr Cummings acknowledged he had no longer been spoken to by police, and that he had made the outing because his other folks might perhaps perhaps aid cherish his younger exiguous one while he and his wife were each in unfortunate health with symptoms of coronavirus.
The PM acknowledged in a speech on 18 March that “children need to unruffled no longer be left with older grandparents, or older family, who will be particularly susceptible or descend into a number of the susceptible teams”.
Passe Conservative MP David Liddington, who change into de facto deputy PM beneath Theresa Would possibly perhaps well well perhaps, told BBC Newsnight: “There might perhaps be clearly serious questions that No 10 are going to non-public to tackle no longer least since the readiness of participants of the general public to prepare government guidance more most continuously goes to be tormented by this create of memoir.”
Mr Johnson’s good take a look at for coronavirus change into launched on 27 March, and Downing Road acknowledged at the time that Mr Cummings didn’t non-public symptoms.
On 30 March, it change into confirmed Mr Cummings had developed symptoms of the virus and change into self-environment apart at residence.
Mr Cummings change into next photographed at Downing Road on 14 April.