A former Indiana University postdoctoral researcher, Youhuang Xiang, has been sentenced in federal court after admitting he hid samples of plasmid DNA derived from E. coli inside a package shipped from China. The judge handed down a sentence of time served, more than four months in custody, along with a $500 fine and one year of supervised release. Under the plea, Xiang must also be turned over to immigration authorities for removal from the United States.
Package Disguised as Clothing, Prosecutors Say
According to local coverage from WISH-TV and WBIW, court filings state the shipment came from a company called Guangzhou Sci-Tech Innovation Trading. The shipping manifest described the contents as “Underwear of Man-Made Fibers, Other Womens,” a description that prosecutors say was intentionally falsified. They allege the plasmid DNA was tucked into the clothing to slip past customs screening.
How the Probe Unfolded
Court documents and local reporting indicate the plasmids were mailed to Xiang in March 2024, and that the FBI opened a probe after tips connected to separate Michigan cases. Authorities say Customs and Border Protection questioned Xiang when he returned to the United States, and he was arrested in late November 2025. Indiana Daily Student and Indiana Public Media report that FBI searches of two IU biology labs followed in December as part of a broader inquiry into shipments to campus researchers.
Prosecutors’ View
U.S. Attorney Tom Wheeler said in a Department of Justice release that Xiang “intentionally exploited his access to laboratory facilities” at one of Indiana’s flagship research universities, as reported by WISH-TV. Prosecutors say the investigation drew in multiple federal agencies, including FBI Indianapolis, U.S. Customs and Border Protection and the U.S. Department of Agriculture Office of Inspector General.
IU Reaction and the Research Context
Indiana University has taken Xiang’s profile down from its department website and told reporters it has “no tolerance for conduct that violates IU policy or state and federal law,” according to the Indiana Daily Student. Faculty familiar with molecular biology work told local outlets that small plasmid shipments from overseas are a routine part of lab life, and they said the case underscores how standard research logistics can land in criminal territory when customs rules are ignored.
Legal Note
Federal law treats smuggling goods into the United States as a serious crime. Under 18 U.S.C. § 545, smuggling can bring penalties of up to 20 years in prison along with significant fines, according to the U.S. Code. In Xiang’s case, the plea deal led to a sentence of time served and administrative removal rather than a lengthy prison term.
What Happens Next
Under the plea agreement, Xiang is to be surrendered to U.S. Immigration and Customs Enforcement for removal. Local reporting states that if ICE releases him at any point, he must report to a U.S. Probation Office within 72 hours to begin his supervised release. The case is the latest federal look at cross-border shipments of biological materials to U.S. research labs and is expected to keep campus compliance teams paying close attention to import rules.
