Russian-Born Harvard Scientist Detained by US Charged With Smuggling

Prosecutors say Kseniia Petrova attempted to smuggle clawed frog embryos and embryonic samples into the country.
Russian-Born Harvard Scientist Detained by US Charged With Smuggling
Kseniia Petrova, a Russian-born scientist who was a researcher at Harvard University, in April 2025. Polina Pugacheva via AP
Katabella Roberts
Updated:
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A Russian-born scientist and research associate at Harvard University has been arrested and charged with allegedly attempting to smuggle clawed frog embryos and embryonic samples into the United States, the U.S. Attorney’s Office for the District of Massachusetts announced on May 14.

Kseniia Petrova, 31, was charged with one count of smuggling goods into the country.

If found guilty, she faces up to 20 years in prison, five years of supervised release, and a fine of up to $250,000.

The charges were announced just hours after a federal judge in Vermont heard arguments in a lawsuit Petrova filed against the Trump administration alleging she has been unlawfully detained at an immigration detention center in Louisiana for months.

She was transferred out of the custody of Immigration and Customs Enforcement (ICE) to a nearby Louisiana parish jail shortly after being charged.

An initial hearing in her criminal case has been set for May 15.

Petrova, a Russian national, was first taken into immigration custody on Feb. 16 after arriving at Logan International Airport in Boston following a trip to Paris.

According to prosecutors, she was stopped by Customs and Border Protection agents after her checked duffle bag was flagged for inspection, revealing biological items including a foam box containing clawed frog embryos in microcentrifuges, as well as embryonic samples in paraffin well stages and on mounted dyed slides.

Such biological products must be declared and require a permit to be brought into the country.

Prosecutors said that Petrova initially denied carrying such material in her baggage but acknowledged she had biological specimens when asked again.

She was then advised that she was ineligible for entry to the United States, at which point prosecutors say she agreed to willingly withdraw her application for admission, prosecutors said.

The Trump administration has indicated it plans to deport her back to Russia.

Lawyer Says Case Is ‘Meritless’

Petrova said she fled Russia after it invaded Ukraine in February 2022 to avoid conflict or possible political repression. She added that she fears she will be imprisoned if she returns because of her political views.

Her lawyer, Gregory Romanovsky, called the case against his client “meritless” and questioned the timing of the charges being announced, noting she was transferred into criminal custody after the judge in her lawsuit set a May 28 bail hearing to consider releasing her.

“The charge, filed three months after the alleged customs violation, is clearly intended to make Kseniia look like a criminal to justify their efforts to deport her,” he said.

During an interview under oath, Petrova allegedly claimed to be unsure that she was required to declare biological material when entering the country, prosecutors said.

However, prosecutors said text messages on her phone from an individual identified as one of her colleagues informed her that she was required to declare the biological material.

They alleged that in response to one text message asking how she planned to get through customs with the biological samples, Petrova said: “No plan yet. I won’t be able to swallow them.”

Petrova’s case has drawn criticism from Democrats, including Massachusetts Attorney General Andrea Joy Campbell, who filed an amicus brief on May 12 opposing the government’s efforts to dismiss her petition for release.

The brief states that Petrova had been conducting critical research on degenerative diseases at Harvard under a valid J-1 visa prior to her detention 10 weeks ago.

“Ms. Petrova’s case is not an isolated incident—this is just the latest example of the Trump Administration’s reckless and cruel misuse of power to punish and terrorize non-citizen members of the academic community,” Campbell said. “I will continue to fight to defend the rights of our international students and faculty, who meaningfully contribute to the academic and economic success of our communities.”

The U.S. Attorney’s Office for the District of Massachusetts said Petrova was recently employed by the Institute of Genetic Biology in Moscow from 2023 to 2024 and previously served as a bioinformatician of genetic disorders at the Moscow Center for Genetics from 2016 to 2023.

Harvard University said in a statement that it “continues to monitor the situation.”

The Epoch Times has contacted Petrova’s attorney for further comment.

The Associated Press and Reuters contributed to this report.