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Carpenter v. United States

Carpenter v. United States

Case Date: 06/22/2018
Citation: Carpenter v. United States, 138 S. Ct. 2206 (2018)
Court Type: Federal Supreme Court
Court: U.S. Supreme Court
Judge: Chief Justice (CJ): John G. Roberts
Rule(s): 4th Amendment

Whether an individual is entitled to Fourth Amendment protections when the Government conducts a search using cell phone location records that accurately reflect an individual’s movements.


Judgment of the Court of Appeals reversed and remanded for further proceedings. The Court held that an individual has a reasonable expectation of privacy in the record of his/her movements as captured through cell-site location information (CLSI), and that the CLSI provided by Defendant’s wireless carriers constituted a search. Thus, the Government must generally obtain a warrant supported by probable cause before acquiring such information.

Relevant Documents:

Brief for the United States

Reply Brief in Opposition


E-Discovery Issues: Motion to Suppress
E-discovery Tags: Cell Site Location Information (CSLI), Preservation and Collection, Privacy, Real Time Cell Phone Information
E-discovery subjects: Cell phone, GPS Device, Pen register, Phone records

Published: July 7th, 2018

Category: Uncategorized

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