The **Fourth Circuit** has issued a concerning opinion in *U.S. v. Belmonte Cardozo*, a case where the **EFF** (Electronic Frontier Foundation), alongside the **ACLU** and **NACDL** (National Association of Criminal Defense Lawyers), filed an amicus brief arguing for stronger Fourth Amendment protections. The organizations contended that electronic device searches at the border should, at minimum, adhere to the same Fourth Amendment standard, regardless of whether they are conducted manually or with forensic software. Unfortunately, the court rejected this argument, establishing a lower standard for manual searches. ### The Border Search Exception and Your Digital Life The **Fourth Amendment** typically mandates a warrant based on probable cause for government searches. However, the border search exception allows warrantless searches of persons or property entering the U.S. This exception, historically applied to luggage and vehicles, is now being extended to electronic devices. Courts have traditionally categorized border searches as either "routine" (requiring no suspicion) or "nonroutine" (requiring reasonable suspicion). While physical belongings have limited privacy expectations, the data on a phone or laptop presents a vastly different scenario. In *Riley v. California* (2014), the **Supreme Court** recognized the unprecedented privacy interests in cell phones, noting that even brief manual searches can reveal the "sum of an individual’s private life." The court then distinguished electronic device searches from those of physical containers, suggesting they should be evaluated differently. Following *Riley*, the **Fourth Circuit** addressed forensic device searches at the border. In *U.S. v. Kolsuz* (2018), the court ruled that forensic searches of cell phones at the border are "nonroutine" and require individualized suspicion of a transnational offense. Subsequently, in *U.S. v. Aigbekaen* (2019), the court held that forensic device searches supporting purely domestic law enforcement investigations require a warrant. *Belmonte Cardozo* brought manual searches into the spotlight. ### A Disappointing Decision **Jose Belmonte Cardozo** was stopped by a **U.S. Customs and Border Protection (CBP)** officer at **Washington Dulles International Airport**. A manual search of his cell phone allegedly uncovered child sexual abuse material (CSAM), leading to his arrest. The **Fourth Circuit** determined that manual device searches are "routine" and therefore reasonable under the **Fourth Amendment** without a warrant or individualized suspicion, unlike forensic searches. The court's reasoning hinged on four key distinctions between manual and forensic searches: 1. **Human vs. Machine:** A person conducts manual searches, not a machine. 2. **Breadth:** Manual searches are limited by an officer's time and energy, while forensic searches are comprehensive. 3. **Data Access:** Manual searches reveal only what a user can typically access, whereas forensic tools can uncover deleted files, cached fragments, and metadata. 4. **Permanence:** Manual searches rely on an officer's memory, while forensic searches create a permanent copy. However, critics argue that these technical differences fail to justify a lower privacy standard. The **EFF** highlighted that manual searches can still access the same categories of highly personal data as forensic searches. The method of search—whether by an agent's thumbs or by software—does not diminish the invasiveness of the result. The court also emphasized that the search in *Belmonte Cardozo* lasted only two minutes, implying it was not overly privacy-invasive. Yet, an individual's privacy interests are not dictated by the duration or method of a search. Even a short period of scrolling through personal messages or photos can reveal intimate details. Furthermore, as native search functions on devices become more sophisticated, manual searches can quickly surface extensive personal information through keyword searches, demonstrating that a time-limited search is not necessarily less privacy-invasive. The core issue remains the unprecedented and ever-growing volume of personal data stored on our phones. ### A Glimmer of Hope? One potential silver lining from the ruling is the court's reliance on the two-minute duration of the search. This suggests that lengthier manual searches might still trigger heightened suspicion requirements. However, until a clearer boundary is established, border officers within the **Fourth Circuit's** jurisdiction can use manual searches to bypass stricter **Fourth Amendment** standards. The **EFF** has pledged to continue its fight against invasive warrantless and suspicionless device searches at the border, advocating for robust privacy standards to protect our most personal data.