EFF Urges Fourth Circuit Court to Require Warrants for Electronic Device Searches at Borders
The Electronic Frontier Foundation (EFF) and other human rights groups have submitted a brief to a federal appeals court arguing that warrantless searches of smartphones and other devices by customs officials violate the U.S. Constitution.
Warrantless Searches of Electronic Devices at Borders Under Scrutiny
On May 11, the Electronic Frontier Foundation (EFF), along with organizations such as the American Civil Liberties Union (ACLU) and the National Association of Criminal Defense Lawyers (NACDL), submitted an amicus brief to the United States Court of Appeals for the Fourth Circuit. The brief calls for warrant requirements for electronic device searches at borders, citing the Fourth Amendment of the U.S. Constitution. The EFF has been advocating this stance in courts and legislative bodies for nearly a decade.
On May 8, the Fourth Circuit Court conducted oral arguments related to this issue. Additionally, institutions like Columbia University’s Knight First Amendment Institute and the Reporters Committee for Freedom of the Press also submitted briefs, emphasizing the potential impact of such searches on freedom of expression.
The “U.S. v. Belmonte Cardozo” Case at the Center of the Debate
At the heart of the dispute is the case “U.S. v. Belmonte Cardozo.” In this case, a U.S. citizen arriving at Dulles Airport near Washington, D.C., from Bolivia had their smartphone manually searched. The individual had been under government surveillance prior to their travel and was flagged for secondary inspection.
Customs officers reportedly discovered child sexual abuse material (CSAM) on the individual’s smartphone, resulting in their arrest and indictment. The district court dismissed the defendant’s motion to exclude the evidence obtained from the warrantless phone search. Ultimately, the individual was convicted of child pornography and sexual exploitation of minors for allegedly using social media to solicit explicit pictures from minors.
Rise in Warrantless Searches and Privacy Concerns
The frequency of warrantless electronic device searches at borders has been increasing, raising significant privacy concerns. In fiscal year 2025, the U.S. Customs and Border Protection (CBP) conducted 55,318 electronic device searches, encompassing both manual (“basic”) searches and forensic (“advanced”) searches.
Manual searches involve officers physically operating a device using a touchscreen or mouse. Forensic searches, on the other hand, require connecting a traveler’s device to another system, employing software to extract and analyze data, and producing detailed reports on the device owner’s activities and communications.
Regardless of the method, such searches deeply intrude upon individual privacy. Customs officers may access data that reveals personal political affiliations, religious beliefs and practices, sexual orientation, romantic relationships, financial status, health conditions, and intimate family or professional connections.
EFF’s Argument: Warrants Should be Required for All Search Methods
In its amicus brief, the EFF argued that the Fourth Circuit Court should apply the same legal standard to both manual and forensic searches. Specifically, they contend that any search should be conducted only with a warrant issued by a neutral judge based on probable cause.
The EFF emphasized that the highly personal nature of information stored on electronic devices warrants consistent legal protections, regardless of the search method. They argue that a judge should determine whether credible preliminary evidence exists to suggest that a particular traveler’s device contains proof of wrongdoing.
This brief highlights a critical legal issue regarding privacy rights in the digital age. A ruling in favor of requiring warrants could impose significant restrictions on border security authorities’ ability to conduct device searches.
Frequently Asked Questions
- Why is there a push to require warrants for electronic device searches at borders?
- Smartphones and laptops store vast amounts of highly personal information, such as political beliefs, health data, and personal relationships. Organizations like the EFF argue that accessing such sensitive data without a warrant violates the Fourth Amendment, which protects against unreasonable searches and seizures. Allowing warrantless searches poses a risk of government overreach and unwarranted privacy invasions.
- How would this change affect travelers?
- If the court rules in favor of the warrant requirement, customs officials would need to demonstrate probable cause to obtain a judge's warrant before searching travelers' electronic devices. This would mean that devices could not be searched solely based on suspicion, potentially enhancing privacy protections for ordinary individuals. However, how exceptions for national security cases would be handled remains a key point of future debate.
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