It leaves little concern for me because, based on what I said about a previous action, I don't think you'll ever see a zero in front of a court. There's no breath tech that I've trained, and I've probably trained thousands, who would ever do a test on someone they knew to be 24 hours or 12 hours past the time of the occurrence. Even if you saw that come before a court, it would be an extremely unusual circumstance that a judge, in the absence of scientific guidance, would take it upon themselves to do that sort of an extrapolation for that amount of time.
Now, I do extrapolations of that type in different types of trials, for example, in cases of sexual assault, where the assault victim has zero blood alcohol but there's an allegation of consumption of alcohol at the time of the incident. A scientific approach would be if you have a zero result and a result from 12 hours before, and you want me to project it, my projection will be from zero to 240 milligrams of alcohol in 100 millilitres of blood, because I have to take into account the possibility that it is zero the whole time, but I also have to take into account something the judges are not going to do. That is, there's a higher rate of elimination available in some, so there would be a large range.