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PRESS RELEASE
Tuesday, June 3, 2025
For Immediate Release
U.S. Attorney's Office, Eastern District of Michigan
DETROIT – Yunqing Jian, 33, and Zunyong Liu, 34, citizens of the People’s Republic of China, were charged in a criminal complaint with conspiracy, smuggling goods into the United States, false statements, and visa fraud, announced United States Attorney Jerome F. Gorgon, Jr.
Gorgon was joined in the announcement by Special Agent in Charge Cheyvoryea Gibson, Federal Bureau of Investigation, Detroit Division and Marty C. Raybon, Director of Field Operations, U.S. Customs and Border Protection.
The FBI arrested Jian in connection with allegations related to Jian’s and Liu’s smuggling into America a fungus called Fusarium graminearum, which scientific literature classifies as a potential agroterrorism weapon. This noxious fungus causes “head blight,” a disease of wheat, barley, maize, and rice, and is responsible for billions of dollars in economic losses worldwide each year. Fusarium graminearum’s toxins cause vomiting, liver damage, and reproductive defects in humans and livestock.
According to the complaint, Jian received Chinese government funding for her work on this pathogen in China. The complaint also alleges that Jian’s electronics contain information describing her membership in and loyalty to the Chinese Communist Party. It is further alleged that Jian’s boyfriend, Liu, works at a Chinese university where he conducts research on the same pathogen and that he first lied but then admitted to smuggling Fusarium graminearum into America—through the Detroit Metropolitan Airport—so that he could conduct research on it at the laboratory at the University of Michigan where his girlfriend, Jian, worked.
United States Attorney Gorgon stated: “The alleged actions of these Chinese nationals—including a loyal member of the Chinese Communist Party—are of the gravest national security concerns. These two aliens have been charged with smuggling a fungus that has been described as a ‘potential agroterrorism weapon’ into the heartland of America, where they apparently intended to use a University of Michigan laboratory to further their scheme.”
“The federal charges announced today against Yunqing Jian and Zunyong Liu, both residents of the People’s Republic of China, signify a crucial advancement in our efforts to safeguard our communities and uphold national security,” said Cheyvoryea Gibson, Special Agent in Charge of the FBI Detroit Field Office. “These individuals exploited their access to laboratory facilities at a local university to engage in the smuggling of biological pathogens, an act that posed an imminent threat to public safety. Thanks to the exceptional investigative efforts of the FBI Detroit Counterintelligence Task Force, in close cooperation with U.S. Customs and Border Protection’s Office of Field Operations these dangerous activities have been effectively halted. The FBI remains resolutely committed to collaborating with our law enforcement partners to protect the residents of Michigan and defend the United States against such grave threats.”
U.S. Custom and Border Protection, Director of Field Operations Marty C. Raybon stated, “Today’s criminal charges levied upon Yunqing Jian and Zunyong Liu are indicative of CBP’s critical role in protecting the American people from biological threats that could devastate our agricultural economy and cause harm to humans; especially when it involves a researcher from a major university attempting to clandestinely bring potentially harmful biological materials into the United States. This was a complex investigation involving CBP offices from across the country, alongside our federal partners. I’m grateful for their tireless efforts, ensuring our borders remain secure from all types of threats while safeguarding America’s national security interests.”
Jian will be appearing this afternoon in federal court in Detroit for her initial appearance on the complaint.
A complaint is only a charge and is not evidence of guilt. Trial cannot be held on felony charges in a complaint. When the investigation is completed, a determination will be made whether to seek a felony indictment.
The FBI and CBP are investigating this case.
Updated June 3, 2025
Tuesday, June 3, 2025
For Immediate Release
U.S. Attorney's Office, Eastern District of Michigan
DETROIT – Yunqing Jian, 33, and Zunyong Liu, 34, citizens of the People’s Republic of China, were charged in a criminal complaint with conspiracy, smuggling goods into the United States, false statements, and visa fraud, announced United States Attorney Jerome F. Gorgon, Jr.
Gorgon was joined in the announcement by Special Agent in Charge Cheyvoryea Gibson, Federal Bureau of Investigation, Detroit Division and Marty C. Raybon, Director of Field Operations, U.S. Customs and Border Protection.
The FBI arrested Jian in connection with allegations related to Jian’s and Liu’s smuggling into America a fungus called Fusarium graminearum, which scientific literature classifies as a potential agroterrorism weapon. This noxious fungus causes “head blight,” a disease of wheat, barley, maize, and rice, and is responsible for billions of dollars in economic losses worldwide each year. Fusarium graminearum’s toxins cause vomiting, liver damage, and reproductive defects in humans and livestock.
According to the complaint, Jian received Chinese government funding for her work on this pathogen in China. The complaint also alleges that Jian’s electronics contain information describing her membership in and loyalty to the Chinese Communist Party. It is further alleged that Jian’s boyfriend, Liu, works at a Chinese university where he conducts research on the same pathogen and that he first lied but then admitted to smuggling Fusarium graminearum into America—through the Detroit Metropolitan Airport—so that he could conduct research on it at the laboratory at the University of Michigan where his girlfriend, Jian, worked.
United States Attorney Gorgon stated: “The alleged actions of these Chinese nationals—including a loyal member of the Chinese Communist Party—are of the gravest national security concerns. These two aliens have been charged with smuggling a fungus that has been described as a ‘potential agroterrorism weapon’ into the heartland of America, where they apparently intended to use a University of Michigan laboratory to further their scheme.”
“The federal charges announced today against Yunqing Jian and Zunyong Liu, both residents of the People’s Republic of China, signify a crucial advancement in our efforts to safeguard our communities and uphold national security,” said Cheyvoryea Gibson, Special Agent in Charge of the FBI Detroit Field Office. “These individuals exploited their access to laboratory facilities at a local university to engage in the smuggling of biological pathogens, an act that posed an imminent threat to public safety. Thanks to the exceptional investigative efforts of the FBI Detroit Counterintelligence Task Force, in close cooperation with U.S. Customs and Border Protection’s Office of Field Operations these dangerous activities have been effectively halted. The FBI remains resolutely committed to collaborating with our law enforcement partners to protect the residents of Michigan and defend the United States against such grave threats.”
U.S. Custom and Border Protection, Director of Field Operations Marty C. Raybon stated, “Today’s criminal charges levied upon Yunqing Jian and Zunyong Liu are indicative of CBP’s critical role in protecting the American people from biological threats that could devastate our agricultural economy and cause harm to humans; especially when it involves a researcher from a major university attempting to clandestinely bring potentially harmful biological materials into the United States. This was a complex investigation involving CBP offices from across the country, alongside our federal partners. I’m grateful for their tireless efforts, ensuring our borders remain secure from all types of threats while safeguarding America’s national security interests.”
Jian will be appearing this afternoon in federal court in Detroit for her initial appearance on the complaint.
A complaint is only a charge and is not evidence of guilt. Trial cannot be held on felony charges in a complaint. When the investigation is completed, a determination will be made whether to seek a felony indictment.
The FBI and CBP are investigating this case.
Updated June 3, 2025
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