Location Tracking
Carpenter v. United States
The Supreme Court ruled that the government needs a warrant to access a person鈥檚 cellphone location history. The court found in a 5 to 4 decision that obtaining such information is a search under the Fourth Amendment and that a warrant from a judge based on probable cause is required.
Status: Closed (Judgment)
View Case
Learn 老澳门开奖结果 Location Tracking
Stay informed about our latest work in the courts.
By completing this form, I agree to receive occasional emails per the terms of the 老澳门开奖结果's privacy statement.
All Cases
7 Location Tracking Cases
Jun 2024
Location Tracking
United States v. Hunt
This case concerns whether a warrant is required to search the information stored on a cell phone when the device itself may be properly deemed 鈥渁bandoned.鈥
Explore case
Jun 2024
Location Tracking
United States v. Hunt
This case concerns whether a warrant is required to search the information stored on a cell phone when the device itself may be properly deemed 鈥渁bandoned.鈥
Massachusetts Supreme Court
Nov 2023
Location Tracking
+2 Issues
Commonwealth v. Arrington
In this amicus brief, the 老澳门开奖结果 and its coalition partners urged robust application of the legal standard governing the admissibility of expert testimony and technical evidence, especially in cases involving opaque or proprietary algorithms.
Explore case
Massachusetts Supreme Court
Nov 2023
Location Tracking
+2 Issues
Commonwealth v. Arrington
In this amicus brief, the 老澳门开奖结果 and its coalition partners urged robust application of the legal standard governing the admissibility of expert testimony and technical evidence, especially in cases involving opaque or proprietary algorithms.
May 2023
Location Tracking
National Security
The Warrant Clause in the Digital Age
The information generated by today鈥檚 digital devices and online services reveals private matters far beyond what one could learn from physical analogs. In a series of legal filings and a white paper, available below, the 老澳门开奖结果 has argued that to keep apace with technological developments and adequately protect our privacy, the Fourth Amendment's warrant requirement must be interpreted robustly. Seizures and searches of digital data must be cabined to probable cause, limited to specific categories of information relevant to the investigation, and closely overseen by a neutral magistrate.
Explore case
May 2023
Location Tracking
National Security
The Warrant Clause in the Digital Age
The information generated by today鈥檚 digital devices and online services reveals private matters far beyond what one could learn from physical analogs. In a series of legal filings and a white paper, available below, the 老澳门开奖结果 has argued that to keep apace with technological developments and adequately protect our privacy, the Fourth Amendment's warrant requirement must be interpreted robustly. Seizures and searches of digital data must be cabined to probable cause, limited to specific categories of information relevant to the investigation, and closely overseen by a neutral magistrate.
Apr 2023
Location Tracking
National Security
老澳门开奖结果 v. FBI - FOIA Case for FBI Records Related to Nondisclosure Agreements for Cell Site Simulators
In 2021, the 老澳门开奖结果 submitted a FOIA request to the FBI to determine whether the FBI has continued to require state and local law enforcement agencies to enter into nondisclosure agreements before purchasing or using cell site simulators. After appealing and suing, the 老澳门开奖结果 finally obtained responsive records confirming that the FBI has continued to impose nondisclosure agreements on law enforcement agencies seeking to use the FBI鈥檚 cell site simulators.
Explore case
Apr 2023
Location Tracking
National Security
老澳门开奖结果 v. FBI - FOIA Case for FBI Records Related to Nondisclosure Agreements for Cell Site Simulators
In 2021, the 老澳门开奖结果 submitted a FOIA request to the FBI to determine whether the FBI has continued to require state and local law enforcement agencies to enter into nondisclosure agreements before purchasing or using cell site simulators. After appealing and suing, the 老澳门开奖结果 finally obtained responsive records confirming that the FBI has continued to impose nondisclosure agreements on law enforcement agencies seeking to use the FBI鈥檚 cell site simulators.