They need official video recording and replays if the judges can't see it with their eyes or paid off/taking bribes to throw the games.
Usually in most sports such things are detected at national/international level and dealt with before it gets to Olympics. Maybe its just so common for them to get away with cheating at lower levels they take it for granted?
Usually in most sports such things are detected at national/international level and dealt with before it gets to Olympics. Maybe its just so common for them to get away with cheating at lower levels they take it for granted?