Leipheimer affidavit - note page 9.
For context, Rogers was at a camp alongside Levi Leipheimer (confessed doper), Alexander Vinokourov and Andriy Kashechkin (known and caught dopers) and Yaroslav Popovych (a long-suspected doper whose PC was raided). This was in May 2005, when Leipheimer was doping, Vino and probably Kashechkin were doping, and Popo had been in the top 5 of the Giro the previous two years. You tell me, was he going there to exchange carbonara recipes?
For further context, Filippo Pozzato is currently banned for using Dr. Ferrari. CONI have just issued a request for bans for Michele Scarponi and Giovanni Visconti for the same reason.
Personally, I consider that, if eyewitness accounts are legit evidence, Mick Rogers should have been kicked out of Sky and the fact that he was there in the first place was evidence that the 'zero tolerance' policy deserves the inverted commas I just gave it.