Doping

“Why would he personally request a test which would incriminate himself further down the line?”

Interesting point.

I could ask to go onto the biological passport tomorrow, but no-one would pay any heed to it. Tiernan-Locke offered to go on it, knowing that the UCI hadn't extended it to Pro Continental teams and couldn't afford to do so, meaning there was the square root of fuck all chance of him actually getting busted.

Furthermore, when he did go on it, he was then busted within a year after suspicions were raised about his initial passport figures, the assumption being that he was clean at Sky, not so clean beforehand, when he was winning races.