ARTICLE · 23 DECEMBER 2025

New Jersey Appellate Court Sets Constitutional Limits On Tower Dump Warrants

Perkins Coie LLP

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Earlier this month an appellate court in New Jersey issued an opinion in State v. Bryant, holding that tower dumps are Fourth Amendment searches that require particularized warrants...

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Francys Guevara

Earlier this month an appellate court in New Jersey issued an opinion in State v. Bryant, holding that tower dumps are Fourth Amendment searches that require particularized warrants supported by probable cause.

This ruling is the latest in decisions scrutinizing the constitutionality of tower dumps.

What Are Tower Dumps and Why Do They Matter?

Cell site location information (CSLI) is created whenever a cell phone connects with a cell tower, creating a digital trail of devices that are linked to specific towers at specific times. While CSLI has made headlines in cases where the information has been used to reveal a single person's location over an extended period of time, tower dumps cast an even wider net by requesting information on all devices connected to a particular cell site.

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