RownhamHill said:
But what does the bolded bit mean? That he has to prove that he'd ingested a supplement without any knowledge of the thing he was ingesting, or that he'd ingested something he thought was legitimate, without knowledge that it was actually contaminated with a prohibited substance?
If it was the former, then you're arguing that the only way someone isn't at fault from taking a contaminated supplement is if they take the supplement itself without knowing about it (perhaps a podium girl had been taking some contaminated energy gel just before a presentation, and there was some residue on her lips when she kissed him?)
If it's the latter (which appeals more to my understanding of natural justice) then how would you prove that other than common sense? Can anyone conceive of a situation in which a rider gets a supplement, somehow (I've no idea of how, but let's just go with it) establishes it is contaminated with a prohibited substance, and then takes it anyway??? But, if I understand the convoluted logic of the judgement, this seems to be what we're meant to believe in order to see that Contador was doping.
The more I think about the judgement, the more the whole things looks like this:
http://www.youtube.com/watch?v=zrzMhU_4m-g
The whole point of the hearing was for an opportunity for AC to prove how drugs got in his system. If he fails to do that, he would be suspended under the strict liability for having shown drugs in his system. Your two options are very similar in my eyes. He would have to prove that the way those drugs got in his system was legitimate (that it was an accident, either by contamination, ignorance, or both).
Again, a failure to prove accidental ingestion would violate the strict liability standard, under which he failed his drug test.
Publicus said:
[1] Your supposition is not supported by the CAS opinion.
[2] If he had advance the theory that it was contaminated supplement, then you are in fact correct, the balance of the evidence CONTADOR presented demonstrated that none of the supplements he took were contaminated. His team SPECIFICALLY ruled out contaminated supplement because (A) according to his testimony, he did not take any supplements on the rest day and (B) he only took the supplements provided by the team to avoid contamination (see the other evidence).
[3] I'm not sure what you are trying to say here "didn't not prove is uninnocence". To my mind that translates into "did prove is uninnocence" (eliminated the double negative). On the issue of the supplement, as noted above, AC's team THOROUGHLY demonstrated why it was not the likely source. CAS was only able to make its ruling by (A) deciding that despite AC and his teammates testimony to the contrary, it was possible that AC took another supplement not provided by the team, (B) implicitly argues that AC has chosen NOT to reveal what the nature of the supplement, (C) supplements have been shown to be contaminated in the past and therefore (D) it is more than likely that that this unknown supplement was the source of the CB contamination. IMO, CAS position is not supported by any meaningful evidence.
1: You're right. I am filling the gaps in what I read literally, with inferences to what they mean in real terms. I may be doing this liberally, but I think it helps to separate what they mean from what they write. It is not up to the CAS to detail how CB got in his samples. Therefore, they can leave it to an ambiguous source
2: We agree.
3: I used that phrase to try and say we agree on what happened in the courtroom, but had different means of articulating it

. It was a rhetorical point if anything.
What we seem to disagree on is your bolded piece only, but only in how we interpret it. I think you believe (just to be sure) that the CAS did not substantially prove A,B,C, and D. I agree.
The rhetorical point I tried to make comes in here. Where you see the decision as a failure, based on an incorrect conclusion by the CAS drawn from ABC and D, I see the decision as accurate, because
no one could prove (or decided to legitimize and prove) ABC and D. This means, that
any excuse for having CB in his system is
not valid, In which case Contador faces normal procedures for failing a doping test (two tears).
RownhamHill said:
I think there's a fairly fundamental problem with this opinion though.
If this really was what CAS thought, then why on earth didn't they say "in our opinion, we think it is most likely that AC took PEDS"?
And why didn't WADA, you know, suggest that the most likely route was that AC took PEDS?
What possible reason, in a court, in a case about prohibited substances that were detected by a test, would a judge use code words to talk about their opinion?
Like my reply to Publicus, I have no basis for that point besides inference. However, I think the reason they did not outright say that is because they could no prove he did; This is a court hearing, where thing need some evidence.
They did not try to, and the WADA did not take that route because they did not need to:
he failed the drug test(s)