Career
After the games, during a doping test she tested positive for Nandrolone. After the 2006 held in Colombo, she was tested positive for Nandrolone. She gave two urine sample A and B. Both contained high level of Nandrolone, sample A contained 27.5 ng/ml and sample B contained half as much as the first sample of 27.5 ng/ml.
However the tolerance for doping by the world anti-doping body WADA is only 2 ng/ml.
She was suspended pending further enquiries. The Disciplinary Committee (District of Columbia) of the, Wijayadasa Rajapaksa delivered the controversial ruling at a news conference held at the National Sports Medicine Institute in Sri Lanka.
Despite Silva guilty of taking a banned anabolic steroid Nandralone, Rajapaksa"s District of Columbia cleared the 26-year-old woman sprinter of all charges, stating that the "chain of custody" of the medical investigation was not coordinated properly. Despite the Medical Committee stating that urine sample A contained a very high percentage of Nandralone and a high concentration like that can only go to blood by injection form.
Silva was cleared of the charges and is allowed to continue athletics.
The decision was later overturened by the Court of Arbitration for Sport, and she was handed a two-year doping ban. The ban ran from 14 April 2008 to 13 April 2010. She was also disqualified from all results from 25 August 2006.