The Chinese national says she sent an estimated five to 10 packages but some were lost in transit.
Petri dishes and notes found in intercepted packages that Chinese researcher Han Chengxuan allegedly smuggled into the United States. Department of Justice
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U.S. prosecutors have charged another Chinese national for smuggling biological materials into the United States and lying about the scheme.
Han Chengxuan, a PhD candidate from Wuhan in central China, was arrested upon landing at the Detroit Metropolitan Airport on June 8. An FBI agent said authorities had intercepted four packages of biological materials that Han allegedly sent to members of a University of Michigan laboratory.
