ARD Doping Editorial Team world exclusive after two-year investigation: Mass doping suspicion in China - WADA fails to act: 23 top Chinese swimmers tested positive in 2021 but were secretly cleared in time to compete at the Tokyo Olympics. With @hajoseppelt 1/ The 23, which included Tokyo 2020 gold medallists – Zhang Yufei and Wang Shun, plus current World Aquatics Swimmer of the Year, Qin Haiyang, all tested positive in January 2021 for trimetazidine, the same substance taken by Russian figure skater Kamila Valieva 2/

ARD Doping Editorial Team thread response to @wada_ama statement about "Guilty: How athletes can unintentionally become dopers". To summarise, their statement was misleading and betrayed one goal: to downplay the documentary's findings wada-ama.org/en/media/news/… 1/ @hajoseppelt Contrary to WADA claims, it is likely sabotage through skin contact far more extensive than a "very small number of prohibited substances, e.g. clostebol". The experiment involved four anabolic steroids, with results due to be released in full in upcoming academic paper 2/

New ARD Doping Editorial Team film: “Guilty: How athletes can unintentionally become dopers” now available online (with English subs and text). rbb24.de/sport/beitrag/… Long-term research with super colleagues @hajoseppelt @joergww @JOpfermann and @malterb. Thread summary below 1/ We wanted to investigate suggestions that you could make someone fail a drugs test simply by touching their skin. Using a carrier substance to bring anabolic steroids into body undetected. We worked alongside Institute of Forensic Medicine in Cologne to experiment 2/