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The international swimming federation says its executive director has been ordered to testify as a witness in a US criminal investigation into the case of 23 Chinese swimmers who tested positive for a banned substance in 2021 yet were allowed to continue competing.
World Aquatics confirmed on Thursday (just after midnight Friday AEST) that Brent Nowicki "was served with a witness subpoena by the United States government".
In May, a House Committee on China asked the Justice Department and the FBI to launch an investigation under a federal law that allows investigations into suspected doping conspiracies even if they occurred outside the US.
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The swimmers were allowed to compete at the previous Olympics in Tokyo despite testing positive for a banned heart medication.
Chinese officials blamed food contamination and the World Anti-Doping Agency accepted that explanation and has since defended its handling of the case.
Eleven of the swimmers are expected to compete for China at the Paris Olympics.
