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DOJ drops charges against Russian researcher accused of smuggling frog embryos

A judge has granted a request from prosecutors to drop the criminal case against Kseniia Petrova, the Russian researcher accused of smuggling frog embryos into the U.S.

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Kseniia Petrova was detained for four months after arrest with research samples, and feared deportation to Russia Federal prosecutors have dropped all criminal charges against a Russian scientist who spent four months in immigration detention after flying into Boston with frog embryos intended for cancer research at Harvard Medical School. Kseniia Petrova, 31, was arrested in March 2025 after returning from a vacati…

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ABC News

DOJ drops charges against Russian researcher accused of smuggling frog embryos

US
Guardian

US prosecutors drop criminal charges against scientist detained over frog embryos

Kseniia Petrova was detained for four months after arrest with research samples, and feared deportation to Russia Federal prosecutors have dropped all criminal charges against a Russian scientist who spent four months in immigration detention after flying into Boston with frog embryos intended for cancer research at Harvard Medical School. Kseniia Petrova, 31, was arrested in March 2025 after returning from a vacati…

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