On July 18, 2000, in Berlin, both Ewald and Dr. Manfred Hoeppner, who served as East Germany's top sports doctor, were convicted of being accessories to "intentional bodily harm of athletes, including minors."
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Krieger gave evidence at the trial of Manfred Ewald, leader of the East German sports programme and president of the East German Olympic committee and Manfred Hoeppner, East German medical director in Berlin in 2000.
At the trial of Manfred Ewald, leader of the East German sports program and president of his East Germany's Olympic committee and Manfred Hoeppner, East German medical director in Berlin in 2000, Krieger testified that the drugs he had been given had contributed to his transsexuality.