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Name: People v. Ramirez (2023) 98 Cal.App.5th 175
Case #: H049957
Court: CA Court of Appeal
District 6 DCA
Opinion Date: 12/22/2023

Even assuming the compelled use of defendant’s fingerprint to unlock his cell phone constitutes a “search” within the meaning of the Fourth Amendment, there was no Fourth Amendment violation because use of defendant’s fingerprint was authorized by the search warrants. Jane Doe 1’s mother reported that defendant had taken inappropriate pictures of Jane Doe 1 on his phone. After obtaining electronic communications search warrants to search defendant’s phone, an officer went to the jail and used defendant’s fingerprint to unlock the phone and view its contents. When the phone locked and officers were unable to open it, they obtained another…

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Name: Carpenter v. U.S.
Case #: 16-402
Court: US Supreme Court
District USSup
Opinion Date: 06/22/2018
Subsequent History: 138 S.Ct. 2206

The Government conducts a search under the Fourth Amendment when it accesses historical cell phone records that provide a comprehensive chronicle of the user's past movements. Each time a cell phone connects to a cell site, it generates a time-stamped record known as cell-site location information (CSLI). Wireless carriers collect and store CSLI for their own business purposes. Here, after the FBI identified cell phone numbers of several robbery suspects including Carpenter, prosecutors were granted court orders to obtain the suspects' cell phone records under the Stored Communications Act (SCA). Wireless carriers produced CSLI for Carpenter,…

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