Chengxuan Han is accused of bringing in biological materials related to roundworms in a case in federal court in Detroit.

Federal authorities arrest Chinese nationals for allegedly smuggling dangerous biological materials, including a crop-killing ...

Two Chinese scientists accused of smuggling or shipping biological material into the United States without permits will ...

Chengxuan Han is the third Chinese researched tied to allegations related to biological pathogens being smuggled into the US.

Two Chinese scientists, Yunqing Jian and Chengxuan Han, remain in custody for allegedly smuggling biological materials into ...

Two Chinese researchers charged in separate biological smuggling investigations consented to federal detention during ...

In the decision to keep them in custody, prosecutors said they had concerns that both women would flee the country if they ...

There was concern that Han Chengxuan and Jian Yunqing would flee the US if released on bond, like a Chinese national in an ...

Yunqing Jian appeared with several attorneys during a detention hearing June 13 in U.S. District Court in Detroit.

Authorities have released a mugshot of the Chinese national accused of smuggling undeclared biological material into the United States. Chengxuan Han was initially scheduled to appear in federal ...