Russian officials are acutely aware that a single positive doping test by a Russian athlete at the Games, which which open on February 7, would cast a shadow over the entire event and further tarnish the country's reputation.
Critics point to the fact that several-high profile dope cheats are still being uncovered every year in Russia but sports officials in the country say that this is evidence that a revamped anti-doping system is finally working.
Russian halfpipe and slopestyle champion Anna Orlovskaya, a Sochi contender, has been suspended for two years for a positive test and will miss the Games.
When the Russian squad lined up for the 2010 Vancouver Winter Olympic Games, where it won only three gold medals in its worst ever performance, its numbers had been severely depleted by positive dope tests.
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The problem was so serious that the International Ski Federation (FIS) forced Russia to remove several trainers and medical personnel.
Patrick Schamasch, in 2008 the medical and scientific director of the International Olympic Committee, had declared then that Russia was a country "where no control is possible and where the lives of testers is even in danger."
Anti-doping agency created
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But already in 2008, a year after Russia was awarded the right to host the Winter Olympics in Sochi, the authorities created the country's first anti-doping agency Rusada to fight against an increasing blight on sport.