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Officer improperly canceled visa of Harvard scholar charged with frog embryo smuggling, judge rules

The ruling said Customs and Border Protection lacked authority to cancel her visa and that it was based solely on frog embryo samples.

  • On Tuesday, U.S. District Court Judge Christina Reiss ruled that a customs officer improperly canceled the visa of Russian-born Harvard University scientist Kseniia Petrova, finding the cancellation arbitrary and capricious. Customs and Border Protection lacked authority to cancel visas for suspected biological sample smuggling.
  • Returning from France last year with frog embryo samples obtained from a specialized laboratory, Petrova was questioned at Boston Logan International Airport, where officials canceled her visa after interrogation. She was subsequently detained in Vermont and Louisiana.
  • Petrova told The Associated Press last year she did not realize the samples needed declaration and was not attempting to sneak anything into the country. Judge Reiss found undisputed facts showed the visa cancellation stemmed solely from the embryo samples.
  • Attorney Gregory Romanovsky said the ruling was "correcting what should never have happened in the first place," while the U.S. Department of Homeland Security did not immediately respond to requests for comment on the decision.
  • The scientific community is closely monitoring Petrova's case, with researchers expressing concern that such visa actions could impact recruitment and retention of foreign scientists at U.S. universities.
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Officer improperly canceled visa of Harvard scholar charged with frog embryo smuggling, judge rules

A U.S. judge says a customs officer improperly canceled the visa of a Russian-born scientist and Harvard University researcher charged with smuggling frog embryos in the U.S.

·United States
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Winnipeg Free Press broke the news in Winnipeg, Canada on Tuesday, April 7, 2026.
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