2021 Chinese swimmers' doping case leads to WADA scrutiny for transparency and rule adherence.

The World Anti-Doping Agency (WADA) faced scrutiny over its handling of a case involving 23 Chinese swimmers who tested positive for banned substances in 2021. Swiss investigator Eric Cottier deemed WADA's decision not to appeal the Chinese Anti-Doping Agency's contamination claims as reasonable, yet criticized its lack of transparency and adherence to anti-doping rules. WADA acknowledged the need for improvements in its processes and communication.