Except, if the transfusion theory is correct, then his inconsequential picograms of clen are precisely equal to bags full of stale blood.
If (and I'm saying this only for the sake of the argument) the clen is from tainted beef and it could be proven (to a reasonable degree), I think everybody would agree to let Dertie go.
The point is that a lot of people here don't believe this scenario.
What I want to see is a good argument why the transfusion theory was ruled out. Such an argument has to show data and have a good scientific foundation. This has not been forthcoming so far. If the UCI, the Spanish federation, Contador, or anybody else invested in this mess wants to come out with a shred of credibility, such an argument has to be made public. The sooner the better. But I'm not holding my breath because I think that such an argument cannot be made with a straight face.
About the plasticizer: a lot of misinformation has been put forth which we had cleared up before. So I'm dismayed to see a lot of that cr@ppy 'science' pop up again.
Just to remind you about the most often repeated nonsense:
1) People handle plastic cr@p all the time, hence it's no wonder they test positive for plastic/plasticizer etc.
No. The plasticizer test measures metabolites in the urine. Metabolites!!! Look it up if you don't know what it means.
2) People drink out of plastic bottles. Hence they ingest plastic/plasticizer etc and therefore it's no wonder they test positive.
No. Blood bags are a bit special because they're medical supplies. The plastic used for blood bags is very carefully chosen. It's a very specific plastic, with a very specific plasticizer which isn't used all that much in other areas. You cannot simply change one model against a different with different plastic because it requires a lot of testing. In fact people very much would like to change to a different model precisely because of the amount of plasticizer which becomes dissolved in the blood and enters the bloodstream upon transfusion.
This brings me to the third point:
3) Every person has this kind of metabolites.
Yes, but the amount is relatively small. Plasticizer concentration really, really spikes after a transfusion because (i) the stuff is injected directly and (ii) the precise plasticizer isn't really in use in many other plastic objects, so the 'background' level is relatively small. You get a pretty good signal-to-noise ratio from the test.
Remember the plasticizer is there to make the plastic of a blood bag really really soft and squishy. Plastic bottles, on the other hand, you want to have stiff. So you use much less plasticizer to begin with. Meaning, there's much less going over into the water you drink etc. etc.