Publicus said:
Can you point me to that post (or give me some idea of when you posted it)? I'd like to read and understand the limitations.
Edit: Never mind, I found it.
glad you did. my posts on the hair test in general and how it could apply to conti are scattered around...
not an expert so take my input for what it's worth, but in summary, it's an occupational quality test that wada is not rushing to adopt. it's main application is the ability to look way beyond the detection window of urine or blood tests but it requires sufficient sample size (several centimeters).
in conta's case, it seems it would make sense to show, just like ovcharov did, he was not a long term user of therapeutic dozes. but, there was risk that if the test was inconclusive, he would have to deal with the action he had little to gain from particularly if his lawyers believed they have other evidence for the purpose (if so, we've never seen it as it was not made public).
there is also the question of testing his spanish dinner mates hair for clen. i'm sure this crossed his lawyers mind. i am speculating they did not use it because, again, an inconclusive random reading wound not be beneficial to his case. if the assumption was that clen was in the fateful dinner meat, and neither conta nor his mates were the regular clen users, to begin with, they did
not stand a reasonable chance to find the tiny traces in the hair from a single random contamination. again, sufficiently large, frequent doses were the application area where the hair test was legally effective normally.
then, there was the time of WHEN conta learned of his positive and his ability to respond with the hair test given the delays.
personally i think he had a window for the hair test even though (depending on how one counts) there was a period of almost 7 weeks before he had his positive confirmed by a b-sample. had he been in dire need, he'd have the reason to grow the hair.
but again, lack of the test, in many people's eyes caused understandable suspicions.