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Court Rules Visa Cancellation of Harvard Researcher Was Unlawful

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• Updated on 9 Apr, 2026, 5:10 PM, by Kollegeapply

A federal court has determined that the visa of Harvard researcher Kseniia Petrova was unlawfully canceled by U.S. authorities, raising questions about immigration enforcement.

Court Rules Visa Cancellation of Harvard Researcher Was Unlawful

A significant ruling from a United States District Court has declared that the visa of Kseniia Petrova, a Russian-born researcher at Harvard University, was unlawfully canceled by Customs and Border Protection (CBP) at Boston Logan International Airport. The decision, delivered by Judge Christina Reiss, emphasizes the limitations of CBP's authority in visa matters, particularly regarding customs-related issues.

 

The incident that led to this ruling occurred in February 2022 when Petrova was returning from France, where she had been conducting research involving frog embryo samples. Upon her arrival at the airport, she was stopped by CBP officers who questioned her about the samples she was carrying. Following this questioning, her visa was abruptly canceled.

 

Petrova later stated that she was unaware that the samples needed to be declared and firmly denied any intention to unlawfully import them into the United States. This lack of awareness played a crucial role in the court's findings.

 

Judicial Findings

Judge Reiss's ruling highlighted that the cancellation of Petrova's visa was not justified by the circumstances surrounding the frog embryo samples. The court found that the CBP had exceeded its jurisdiction by revoking her visa based on a customs-related issue, which is outside the agency's authority.

 

In her ruling, Reiss stated, "The undisputed facts reveal that Ms. Petrova’s visa was impermissibly canceled because of the frog embryo samples and for no other reason." This assertion underlines the court's stance that visa cancellations must adhere to established legal frameworks and cannot be arbitrarily enforced based on customs violations.

 

Consequences of the Cancellation

Following the cancellation of her visa, Petrova faced immediate repercussions. She was detained and subsequently transferred to a facility operated by U.S. Immigration and Customs Enforcement (ICE) in Louisiana. During her detention, she challenged the legality of the visa cancellation through various legal petitions.

 

In addition to her visa issues, federal prosecutors charged her with smuggling and making false statements. A grand jury later indicted her on one count of smuggling and two counts of making false statements. She remained in custody until mid-June when a judge ordered her release.

 

Despite these challenges, Petrova was granted permission to resume her work at Harvard, marking a significant victory in her ongoing legal battle. Her attorney, Gregory Romanovsky, expressed that the ruling was a crucial step toward rectifying what he described as an unjust situation.

 

Implications for Immigration Policy

This ruling has broader implications for U.S. immigration policy, particularly regarding how visa cancellations are handled by CBP. The court's decision reinforces the notion that immigration enforcement must operate within the bounds of the law and that agencies cannot overstep their authority.

 

A spokesperson for the U.S. Department of Homeland Security defended the actions taken against Petrova, stating that she was "lawfully detained after lying to federal officers about carrying substances into the country." This statement reflects the ongoing tensions between immigration enforcement and legal rights, particularly for foreign researchers and scholars.

 

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As Petrova's case continues to unfold in court, it raises critical questions about the balance between national security and the rights of individuals, particularly those engaged in academic research. The ruling serves as a reminder that legal protections must be upheld, even in the context of immigration enforcement.