<P> In the late 1990s , the IOC took the initiative in a more organized battle against doping , leading to the formation of the World Anti-Doping Agency ( WADA ) in 1999 . The 2000 Summer Olympics and 2002 Winter Olympics have shown that the effort to eliminate performance - enhancing drugs from the Olympics is not over , as several medalists in weightlifting and cross-country skiing were disqualified due to failing a drug test . During the 2006 Winter Olympics , only one athlete failed a drug test and had a medal revoked . The IOC - established drug testing regimen ( now known as the `` Olympic Standard '' ) has set the worldwide benchmark that other sporting federations attempt to emulate . During the Beijing games , 3,667 athletes were tested by the IOC under the auspices of the World Anti-Doping Agency . Both urine and blood testing was used in a coordinated effort to detect banned substances and recent blood transfusions . While several athletes were barred from competition by their National Olympic Committees prior to the Games , six athletes failed drug tests while in competition in Beijing . </P>
<P> In the late 1990s , the IOC took the initiative in a more organized battle against doping , leading to the formation of the World Anti-Doping Agency ( WADA ) in 1999 . The 2000 Summer Olympics and 2002 Winter Olympics have shown that the effort to eliminate performance - enhancing drugs from the Olympics is not over , as several medalists in weightlifting and cross-country skiing were disqualified due to failing a drug test . During the 2006 Winter Olympics , only one athlete failed a drug test and had a medal revoked . The IOC - established drug testing regimen ( now known as the `` Olympic Standard '' ) has set the worldwide benchmark that other sporting federations attempt to emulate . During the Beijing games , 3,667 athletes were tested by the IOC under the auspices of the World Anti-Doping Agency . Both urine and blood testing was used in a coordinated effort to detect banned substances and recent blood transfusions . While several athletes were barred from competition by their National Olympic Committees prior to the Games , six athletes failed drug tests while in competition in Beijing . </P>
how do they test for drugs at the olympics
how do they test for drugs at the olympics
urine and blood testing
urine and blood testing