Chinese Researchers in Michigan Agree to Remain in Jail Amid Biological Smuggling Charges

Two Chinese researchers, Chengxuan Han and Yunqing Jian, affiliated with the University of Michigan, have agreed to remain in federal custody without bond as they face charges related to smuggling biological materials into the United States. Han was arrested after arriving from China and is accused of sending biological material without permits, while Jian is charged with conspiring to smuggle a toxic fungal pathogen, Fusarium graminearum, which affects important crops. These cases have heightened concerns amid broader enforcement efforts by U.S. authorities, including plans by the Trump administration to revoke Chinese student visas nationwide, reflecting fears of potential Chinese government campaigns targeting U.S. agriculture and election interference. The decision to detain the researchers stems in part from worries they might flee, especially following a recent related case involving another Chinese national accused of illegally voting and fleeing prosecution. Both Han and Jian face preliminary hearings where prosecutors must show probable cause, and if convicted, Han could face up to 20 years in prison. University officials and legal experts have expressed support for the strict enforcement, emphasizing the importance of vigilance in protecting national security and research integrity.