FILE - This photo provided by the Sanilac County, Mich., Sheriff’s Office on Friday, June 13, 2025, shows Chinese scientist Chengxuan Han. (Sanilac County Sheriff’s Office via AP, file)
Sara Garber, attorney for Chengxuan Han, one of two Chinese scientists accused of smuggling or shipping biological material to the United States, speaks after a sentencing hearing at the U.S. District Court, Wednesday, Sept. 10, 2025, in Detroit. (AP Photo/Ryan Sun)
Sara Garber, attorney for Chengxuan Han, one of two Chinese scientists accused of smuggling or shipping biological material to the United States, speaks after a sentencing hearing at the U.S. District Court, Wednesday, Sept. 10, 2025, in Detroit. (AP Photo/Ryan Sun)
Sara Garber, attorney for Chengxuan Han, one of two Chinese scientists accused of smuggling or shipping biological material to the United States, speaks after a sentencing hearing at the U.S. District Court, Wednesday, Sept. 10, 2025, in Detroit. (AP Photo/Ryan Sun)
Sara Garber, attorney for Chengxuan Han, one of two Chinese scientists accused of smuggling or shipping biological material to the United States, leaves after a sentencing hearing at the U.S. District Court, Wednesday, Sept. 10, 2025, in Detroit. (AP Photo/Ryan Sun)
Judge says 3 months in jail are enough for Chinese scientist in US smuggling case
DETROIT (AP) 鈥 A young Chinese scientist interrogated for hours after an international flight to Detroit and held in jail for three months was sentenced to time served Wednesday for illegally shipping biological material to the U.S. that nonetheless wasn’t a threat to the public.
FILE - This photo provided by the Sanilac County, Mich., Sheriff’s Office on Friday, June 13, 2025, shows Chinese scientist Chengxuan Han. (Sanilac County Sheriff’s Office via AP, file)
DETROIT (AP) 鈥 A young Chinese scientist interrogated for hours after an international flight to Detroit and held in jail for three months was sentenced to time served Wednesday for illegally shipping biological material to the U.S. that nonetheless wasn’t a threat to the public.
U.S. District Judge Matthew Leitman acknowledged that federal agents have a critical role in stopping 鈥渂ad actors鈥 from trying to get 鈥渂ad stuff鈥 into the country. But he also noted that Chengxuan Han, who was headed to a one-year job at a University of Michigan lab, doesn’t appear to fit that category.
鈥淭hat鈥檚 the appropriate balance to strike here,鈥 the judge said in declining to keep Han locked up for another three months as the government had suggested.
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Han cried as she spoke to the judge in Mandarin and expressed regret for a 鈥渧ery painful鈥 lesson. She said her career will be 鈥渄estroyed鈥 when she soon returns to China.
鈥淕overnment agents are doing their duties here. ... I really have no intention to harm anybody and create a security hazard,鈥 Han said through a translator.
The U.S. Attorney’s Office in Detroit has used unflattering language in promoting the case against Han, even referring to her as an 鈥渁lien from Wuhan,鈥 a Chinese city that became notorious as the possible source for the global spread of COVID-19.
Han is 鈥渘ot some sort of Chinese operative,鈥 defense attorney Sara Garber said in a court filing, describing her as a 鈥渘erdy, kind and polite academic.鈥
Han, who is in her late 20s, pleaded no contest to smuggling and making false statements. Before her arrival in the U.S., authorities said she made three shipments to someone in Ann Arbor, Michigan, including a book with a hidden envelope that contained filter paper with 28 shapes containing plasmids, which are found naturally in bacteria.
鈥淗ello! This is a fun letter with interesting patterns. I hope you can enjoy the pleasure within it,鈥 Han wrote.
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Han was also accused of sending petri dishes that contained nematode worms, known as C. Elegans. Authorities said the packages were not properly labeled and that Han didn’t have approval to ship them.
鈥淐. Elegans is easy to obtain, easy to study, nonharmful,鈥 Garber said.
She said Han’s research focuses on how organisms detect light, touch and temperature.
鈥淭his is not a case of smuggling in some sort of virus or a crop-destroying something or other,鈥 the judge said. 鈥淔rom what I can tell, this material was not a threat at all.”
Han’s case is one of two involving Chinese scientists and the University of Michigan. Yunqing Jian is charged with conspiring with her boyfriend, another scientist from China, to into the U.S. Fusarium graminearum can attack wheat, barley, maize and rice.
It is already found in the East and Upper Midwest, and for decades. Jian’s case is pending.
