Cummings was deliberately vague when he had no option to be otherwise: he could remember talking to Boris, but because they were both so poorly (albeit Cummings was well enough a day or two later to collect son/Mary from hospital) he couldn't recall discussing him being in Durham. He said this in the rose garden.
He thinks they might have stopped for petrol but he couldn't be sure. Again, said in the rose garden.
Despite forgetting a conversation with his boss, and getting petrol he remembers Mary wishing someone a happy Easter, on the private grounds that his parents own. He had to justify this, because he knew Lee had told Sky/Police and the number plate matched. So he acknowledged it, but painstakingly added that it was in a private family owned woods. Obviously not that private, as members of the public, like Lee were wandering around too.
He covered the tracks he had to, and deliberately evaded the other questions because he couldn't really answer them. The one thing he did have to do, is explain why he was at Durham Castle (on Mary's birthday), so instead of telling the truth, we got the pathetic reasoning: testing my eyesight by driving, to see if I could drive.
Regarding the 5 - 1 criteria, we are on level 4. We are probably creeping back towards 5, because of the increase in infections. So, we are now expected to forget about this key bit of information. It has been dropped from briefings all week. So, we must get down to level 3, which Boris insisted 3 weeks ago, is no longer a priority. Perhaps its because they need to push ahead with re-opening the economy, no matter what. And the R number will increase, because it has elsewhere in Europe.
Schools have now closed in South Korea, having opened this week because of an outbreak of infections. And they were way ahead of us in managing this before they reopened in the first place.
Our local hospital is expecting to see a significant rise in two weeks time.
Many family members and friends have decided to keep their children out of school next week, with resulting loss of income for some of them. Because they know it's too early. They know that trace and trace isn't effective yet, and we need to wait a while longer.
The government can tell us to do this, and that, and when we should, but if we've learned one thing in the last week, it is that guidance can be interpreted, and our instinct as parents, over rules everything.