If you look under "Press Releases" on the official Olympic website, there's full details on all athletes who have been penalised for anything...
e.g.
The Greek athlete who pretended to have a motorbike accident in 2004 to avoid drug testing, tried to get into the 2008 games...
Recommendation and facts: http://multimedia.olympic.org/pdf/en_report_1345.pdf
Finding: http://multimedia.olympic.org/pdf/en_report_1346.pdf
The Swedish wrestler who threw a tantrum during a medal presentation last week. (He thought he should have got Gold instead of Bronze, and the judges were biased. He hasn't got anything now.)
http://multimedia.olympic.org/pdf/en_report_1354.pdf
