1972 Summer Olympics medal table invitation and threatened to boycott the Games. Three days before the opening ceremonies the IOC voted to rescind their invitation and exclude the Rhodesian athletes. The Games were largely overshadowed by what has come to be known as the Munich massacre. On September 5 a group of eight Palestinian terrorists belonging to the Black September Organization broke into the Olympic Village and took nine Israeli athletes, coaches and officials hostage in their apartments. Two of the hostages who resisted were killed in the first moments of the break-in; the subsequent standoff in the Olympic Village lasted for almost 18 hours.
Doping at the Olympic Games 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. What follows is a list of all the athletes that have tested positive for a banned substance either during or after an Olympic Games in which they competed. Any medals listed were revoked by the International Olympic Commission (IOC). In 1967 the IOC banned the use of performance-enhancing drugs, instituted a Medical Commission, and created a list of banned substances. Mandatory testing began at the