D.Nev.: Cell tower dump to solve a murder was a general warrant, but not suppressed

A California state judge issued a cell tower dump warrant to attempt to find who could have been involved in two dead bodies in the desert. The judge testified at the suppression hearing in the District of Nevada. The cell tower dump here was a Fourth Amendment general search, but the court declines to suppress. The product of that search led to 90 other warrants. United States v. Spurlock, 2025 U.S. Dist. LEXIS 69360 (D. Nev. Apr. 11, 2025):

d. Whether Suppression is Otherwise Warranted

The Court otherwise notes a reluctance to suppress evidence when courts declare novel investigative techniques unconstitutional. See, e.g., Smith, 110 F.4th at 840 (“[W]e cannot fault law enforcement’s actions considering the novelty of the technique and the dearth of court precedent to follow.”); Elmore, 917 F.3d at 1078 (“This is particularly true in light of the fact that in 2012, no circuit court had yet held the Fourth Amendment applicable to CSLI data.”). And the Court appears to be the first court within the Ninth Circuit to declare tower dump warrants unconstitutional general warrants. Even Smith, which does not bind the Court, was not decided until 2024. See generally 110 F.4th 817. Moreover, Smith is the first circuit decision finding geofence warrants unconstitutional. This being the case, neither Sergeant Hernandez nor Judge Magit can reasonably have been expected to refrain from seeking the warrant, or to refrain from issuing it, back in 2020. For this additional, alternative reason, the Court declines to suppress any evidence obtained in response to warrant 20-SW-56.

And because the Court declines to suppress any evidence returned from warrant 20-SW-56, the Court also declines to suppress any evidence returned from the approximately 90 (according to Spurlock) other warrants that may have relied at least in part on evidence obtained in response to warrant 20-SW-56. In sum, the Court will deny Spurlock’s motion to suppress tower dump data.

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