EPIC Amicus Curiae Briefs

EPIC frequently files amicus curiae, or "friend of the court", briefs in federal and state appellate cases concerning emerging privacy and civil liberties issues.

We work closely with technical experts and legal scholars, members of the EPIC Advisory Board, on these briefs. EPIC's amicus briefs assist judges in their analyses of novel privacy issues, often involving new technology. Many of these cases are complex and technical. Judges often acknowledge EPIC's briefs in their opinions, and have expressed gratitude for EPIC's participation in important cases. EPIC's decision to participate as amicus in a particular case typically follows an extensive review of matters pending before federal and state courts.

Interested in potential amicus opportunities in pending privacy, civil liberties, and technology cases? Visit the EPIC Amicus Tracker.

Search results for: Fourth Amendment

Byrd v. United States 16-402
Supreme Court | Fourth Amendment

Whether a driver can challenge a warrantless search of a rental vehicle under the Fourth Amendment if they are not registered on the car rental contract


Apple v. FBI CM 16-10 (SP)
Central District of California | Fourth Amendment

Concerning an Order Requiring Apple to Create Custom Software to Assist the FBI in Hacking a Seized iPhone


Utah v. Strieff 14-1373
Supreme Court | Fourth Amendment

Concerning Whether An Outstanding Arrest Warrant Attenuates the Taint of an Unlawful Detention


Commonwealth v. White SJC-11917
Massachusetts Supreme Judicial Court | Fourth Amendment

Whether schools may turn over to the police a student's cell phone without a warrant


United States v. Ganias 2nd Cir ___
U.S. Court of Appeals for the Second Circuit | Fourth Amendment

Whether the Government violated the Fourth Amendment when they retained non-pertinent files for more than two years after the files were seized in an unrelated investigation


City of Los Angeles v. Patel 576 U.S. ___ (2015)
Supreme Court | Fourth Amendment

Whether a city ordinance authorizing warrantless and suspicionless searches of hotel guest registries violates the Fourth Amendment


State v. Davis N.M. ___
New Mexico Supreme Court | Fourth Amendment

Whether aerial surveillance within the super adjacent space surrounding a dependant's home is a search under the Fourth Amendment and the New Mexico Constitution


Riley v. California 573 U.S. ___ (2014)
Supreme Court | Fourth Amendment

Whether a warrantless search of a cell phone during an arrest violates the Fourth Amendment


Maryland v. King 569 U. S. ___ (2013)
Supreme Court | Fourth Amendment

Concerning the Constitutionality of Mandatory DNA Collection Pre-Conviction


Florida v. Harris 568 U. S. ___ (2013)
Supreme Court | Fourth Amendment

Whether an investigative technique that law enforcement asserts reliably identifies the presence of contraband is sufficient to satisfy the probable cause requirement of the Fourth Amendment and thereby allows routine warrantless searches.


United States v. Jones 565 U. S. ___ (2012)
Supreme Court | Fourth Amendment

Concerning Warrantless GPS Installation and Tracking Under the Fourth Amendment


Tolentino v. New York 563 U. S. ___ (2011)
Supreme Court | Fourth Amendment

Concerning Suppression of Evidence Accessed After an Illegal Police Search


City of Ontario v. Quon 560 U. S. 746 (2010)
Supreme Court | Fourth Amendment

Concerning Text Messaging Privacy in the Workplace


Commonwealth v. Connolly 454 Mass. 808 (2009)
Massachusetts Supreme Judicial Court | Fourth Amendment

Concerning GPS Tracking of a Vehicle as a "Search and Seizure"


New Jersey v. Reid 194 N.J. 386, 954 A.2d 503 (N.J. 2008)
New Jersey Supreme Court | Fourth Amendment

Concerning ISP subscriber privacy


Johnson v. Quander U.S. Cert., 2006
Supreme Court | Fourth Amendment

Concerning DNA collection


Kohler v. Englade 470 F. 3d 1104 (5th Cir. 2006)
U.S. Court of Appeals for the Fifth Circuit | Fourth Amendment

Concerning DNA Dragnets


United States v. Kincade 379 F.3d 813 (9th Cir. 2004)
U.S. Court of Appeals for the Ninth Circuit | Fourth Amendment

Concerning DNA collection


Hiibel v. Sixth Judicial Dist. Ct. of Nev., Humbolt County 542 U. S. 177 (2004)
Supreme Court | Fourth Amendment

Whether an individual who has not been arrested may refuse to identify himself to a law enforcement officer


United States v. Bach 310 F.3d 1063, 1066 (8th Cir. 2002)
U.S. Court of Appeals for the Eighth Circuit | Fourth Amendment

Concerning service of a warrant by fax