U.S. says it has arrested another Chinese researcher accused of smuggling biological material
U.S. authorities said Monday that they had arrested a Chinese researcher accused of smuggling biological material into the country, the second such case in days.
The FBI said in a criminal complaint that Chengxuan Han, a Chinese doctoral student at the College of Life Science and Technology at the Huazhong University of Science and Technology in Wuhan, had been arrested Sunday at the airport in Detroit.
According to the complaint, since September 2024, Han has sent four shipments from China containing concealed biological material to staff at a laboratory at the University of Michigan, where she planned to spend a year completing a project. Officials said Han made false statements about the shipments when questioned about them by federal agents upon her arrival in the U.S. from Shanghai.
The arrest comes on the heels of the charging of two Chinese nationals last week after the FBI said it was determined that one had attempted to smuggle a toxic fungus into the U.S., also allegedly for research at the University of Michigan. One, a researcher at the university, was arrested and remains in custody, while the other was denied entry to the U.S. last year and remains at large.
According to the complaint, the biological material Han is accused of smuggling — sometimes hidden between pages of a book — is related to round worms and requires a government permit.
'It doesn't strike me as something that is dangerous in any way. But there are rules to ship biological material,' Michael Shapira, a biologist at the University of California, Berkeley who read the court filing, told The Associated Press.
The complaint also alleges that Han deleted the contents of her electronic device three days before arriving in Detroit.
'Han stated she deleted the content to 'start fresh' while she was in the United States,' it says.
Han is in custody ahead of a bond hearing on Wednesday.
The Chinese Embassy in Washington did not immediately respond to an emailed request for comment outside of business hours.
With regard to the two Chinese nationals who were previously charged, a spokesperson for the Chinese Ministry of Foreign Affairs said last week that he was not aware of the situation but that the Chinese government 'has always required Chinese citizens overseas to strictly abide by local laws and regulations, while also safeguarding their legitimate rights and interests in accordance with the law.'
The University of Michigan also did not immediately reply to a request for comment Monday outside of business hours.
In a statement in response to the case last week, the university said it was cooperating with federal law enforcement and that it strongly condemned 'any actions that seek to cause harm, threaten national security or undermine the university's critical public mission.'
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