Drunkmefunk
The authorities are capable of extrapolating the results of an alcohol test to give the alcohol level several hours prior to the test, as the rate at which the body metabolises alcohol is known.
If he was clear on the second test, he was clear!
As for the Sun article. It comes as no surprise to me that they make up quotes from such as "A Britannia insider" and do no research on duty hours. (or anything at all in fact)