Pressed by the BBC’s Laura Kuenssberg on the protracted roll-out of the regime at the government’s Covid briefing on Wednesday (3 February), Johnson said Hancock would be providing an update shortly.
Johnson defended the government’s existing border arrangements with regards to Covid, stressing it was important not to "totally seclude" the nation.
"We can say it’s illegal to go on holiday, which it is, and to come from this country from a great list of countries around the world," said Johnson.
"And if you do come here from one of those countries, then you will be taken and put in special accommodation.