Tony Andre Hansen and Camiro in Hong Kong. © Kit Houghton/FEI
The Lausanne, Switzerland-based Court of Arbitration for Sport dismissed his appeal and confirmed the decision of the FEI Tribunal in which the athlete and his horse, Camiro, were disqualified from the Games, suspended for four and a half months, and fined 3000 Swiss francs.
In addition, the results of the Norwegian jumping team at the Beijing Games, which won bronze, would be recalculated without the score of Hansen and his horse, dropping the nation from medal contention and into eighth place.
The case was heard at the court's headquarters in Lausanne on October 26, during which the parties, their legal representatives and their witnesses and experts were heard.
The court panel, comprising Michael Beloff QC, from Britain, Dr Kaj Hober, of Sweden, and Professor Michael Geistlinger, of Austria, confirmed the results of the anti-doping test revealing the presence of the banned substance Capsaicin in the horse's urine.
The panel rejected all arguments put forward by the athlete in order to rebut the presumption of a medication control offence, such as a possible contamination of the urine samples.
Equi-Block, which contains capsaicin, the substance at the centre of four Olympic doping cases.
Denis Lynch (Ireland) and Bernardo Alves (Brazil) withdrew their appeals after the court dismissed their requests for a stay.
In the case of Christian Ahlmann (Germany), the court re-qualified the infraction as a classical doping offence and increased the sanction of the athlete to eight months, following an appeal filed by the German Equestrian Federation.
Contrary to these three cases, where the source of Capsaicin was an ointment called Equi-Block, no concrete explanation concerning the presence of Capsaicin was given in the case of Hansen.
"The FEI welcomes the decision of the Court of Arbitration for Sport," FEI Secretary General Alex McLin said.
"The fact that the CAS has ruled in FEI's favour in this long and vigorously contested case demonstrates that the FEI judicial process is fair, thorough and respects the rights of the parties. The last pending Olympic equestrian case is now closed."
Revised Olympic team showjumping results:
4. The Netherlands
5. Great Britain