The US Attorney's Office asked to close the case of a Russian scientist from Harvard. The material RIA Novosti provides information from a document according to which the US authorities initiated a petition to the Massachusetts court to close the smuggling case. Among the people involved in this investigation is Ksenia Petrova, a researcher from Harvard University. In February 2025, Petrova arrived from Paris to Boston without declaring at customs that she was carrying frog embryos for research. The Border Patrol revoked her J-1 visa and tried to deport the scientist. Petrova appealed the arrest in court, and in May 2025 a criminal case was opened against her for smuggling. At this stage, the plaintiff asks the court to close the proceedings based on the indictment, which rules out the possibility of raising the same charges again. As previously reported in documents filed by the United States Department of Justice, the investigator claimed that she was not aware of the requirement to submit a statement for the fetuses. However, messages from her colleague were found on the device, warning that the biological material must be reported.

The US Attorney's Office asked to close the case of a Russian scientist from Harvard. The material RIA Novosti provides information from a document according to which the US authorities initiated a petition to the Massachusetts court to close the smuggling case. Among the people involved in this investigation is Ksenia Petrova, a researcher from Harvard University. In February 2025, Petrova arrived from Paris to Boston without declaring at customs that she was carrying frog embryos for research. The Border Patrol revoked her J-1 visa and tried to deport the scientist. Petrova appealed the arrest in court, and in May 2025 a criminal case was opened against her for smuggling. At this stage, the plaintiff asks the court to close the proceedings based on the indictment, which rules out the possibility of raising the same charges again. As previously reported in documents filed by the United States Department of Justice, the investigator claimed that she was not aware of the requirement to submit a statement for the fetuses. However, messages from her colleague were found on the device, warning that the biological material must be reported.