French sports daily L’Equipe has today reported that suggestions of blood doping, based on the detection of plasticizers in his test sample, may form a central part of the UCI’s case against Alberto Contador.
Doesn’t by any means mean that DEHP results will be used, but that passage to my eyes sure looks like a step up from “it’s only a rumor” or “they will not and cannot use this test”. At the very least, no one from either side has jumped in to deny this vicious rumor.
Actually, a lot could hinge on the meaning of "may". In American English, at least, "may" and "might" are often used interchangeably, but they can have very different meanings. "Might" refers to possibility, as in "it is possible that the DEHP test could be used". Not a very significant statement. But "may" refers to permission, as in "the DEHP test will be allowed". Probably the above passage used might in the common, conflationary sense, but if it didn't, the passage would become very significant.
But then again, a passage like this is sure to sell papers. We shall see.
The sequence of events that UCI and WADA experts could put forward, according to L’Equipe, is as follows: on the eve of the positive test for clenbuterol, Contador administered a blood transfusion.
Several hours later, noticing that his blood values had changed and mindful that he faced further testing, he would have transfused blood serum to bring the values into line with his biological passport. It was this serum, surmises L’Equipe, that contained the traces of clenbuterol.
Why would CB be more likely to be found in serum than in the original blood transfusion? Only if the assumption is that Bert used frozen cells, and kept the plasma, rather than just using saline or albumin to dilute. Possible, but not very likely. I think the hypothesis that he transfused whole blood contaminated with CB is more plausible, though this new notion could be significant if strong evidence emerged against a withdrawal in June.
Depending on the sources of this statement, it could suggest the prosecution is considering transfusion very thoroughly, taking into account not only that with whole blood, but also the possibility that withdrawals were made in the offseason, and cells separated and frozen for later in-season transfusion. But unless some evidence we don't know about seriously damages the whole blood transfusion theory, I don't see how this would be very relevant to the case. Maybe they are just covering every possible eventuality.
I think that last point is the one hurdle that most folks can't get over. In their mind it is impossible to eat tainted meat in the EU. In reality, it's improbable but it does in fact happen (however in frequently).
That’s actually a great argument for Floyd, too bad you weren’t around, Publicus, to make it when he needed it:
I think that last point is the one hurdle that most folks can’t get over. In their mind it is impossible to test three oo/oo units above the controls unless you used synthetic testosterone. In reality, it’s improbable but it does in fact happen (however infrequently).
Actually, this is not a good analogy, because the possibility of an innocent rider testing three oo/oo units above controls in the IRMC is actually far greater than the possibility of a random meat sample in Spain being contaminated with CB.
Floyd, of course, was convicted, because the evidence was well within the “between preponderance and beyond reasonable doubt” standard that WADA is supposed to use. That the meat Bert ate was clean is so far beyond reasonable doubt that that phrase is inadequate to express the likelihood of contamination.
As for the bio-passport part, if the absence of abnormalities isn't proof that he isn't blood doping, then how are abnormalities proof that he is???
Again, you are confusing a converse with a contra positive; they are not the same logically. A certain gel pattern in an EPO test is considered proof of doping; the absence of that pattern is by no means considered proof of not doping.
I know that you, GJB and I have been to the mat a lot on this issue, with GJ, at least, saying that he does not necessarily believe Bert is innocent, but does think UCI will have a hard time arguing that its passport baby is inadequate to catch dopers. But remember that virtually all doping tests (or other medical tests, for that matter) have to strike a balance between false positives and false negatives. Generally speaking, you reduce the incidence of the one only by increasing the incidence of the other. Given the paramount belief that false positives must be minimized, this virtually guarantees that any doping test is going to have a substantial number of false negatives.
This is just reality; there is nothing anyone can do about it. For UCI or WADA to point this out should not, for anyone who understands these tests, undermine the passport system.
In fact, it now occurs to me that this could provide another explanation for that contaminated serum theory. If Bert is alleged to have transfused whole blood, the notion of regular withdrawals and transfusions may (or might!) come up, and it will look worse for the passport system to argue he could have been doing this over an extended period of time with no abnormalities. Again, it's well known how he could do this, but some have argued that UCI doesn't want to admit this.
Using the contaminated serum theory allows one to argue that Bert did all his withdrawals in the offseason, maybe at one time, and stored the cells frozen. Therefore, he really wasn't doing anything dodgy the rest of the time, when his passports were negative. Regardless of whether UCI or WADA believes this is the case, it is another strong counter-argument to the notion that a clean passport makes transfusion unlikely.