United States v. Davis
The Eleventh Circuit's pre-Carpenter en banc decision holding that a subscriber had no reasonable expectation of privacy in historical cell-site location records held by MetroPCS—an important example of the traditional third-party doctrine that the Supreme Court later rejected for sufficiently revealing historical CSLI in Carpenter.
Executive Summary
Quartavious Davis was prosecuted for participating in a series of armed robberies in South Florida. The government obtained historical cell-site records from MetroPCS under a Stored Communications Act order issued pursuant to 18 U.S.C. § 2703(d), which required a showing below probable cause. The records covered roughly 67 days and allowed the government to place Davis's phone near several robbery locations. A three-judge Eleventh Circuit panel initially held that Davis had a reasonable expectation of privacy in the historical location data and that obtaining it without a warrant violated the Fourth Amendment, though the panel declined suppression under the good-faith exception. The Eleventh Circuit then granted rehearing en banc, vacated the panel decision, and reached the opposite constitutional conclusion. Applying Smith v. Maryland and United States v. Miller, the en banc court held that MetroPCS's historical cell-site records were provider business records voluntarily conveyed through use of the cellular network and that Davis therefore lacked a reasonable expectation of privacy in them. Three years later, Carpenter v. United States rejected that categorical extension of the third-party doctrine to historical CSLI, holding that government acquisition of sufficiently revealing historical CSLI is a Fourth Amendment search generally requiring a warrant.
United States v. Davis matters today primarily as a doctrinal bridge. It shows how lower federal courts applied Smith and Miller to emerging location technology before the Supreme Court recalibrated the analysis in Carpenter.
The case also illustrates why the label "business record" can be misleading in digital privacy disputes. MetroPCS created and retained the records for network purposes, but the records could reconstruct Davis's physical movements over time. The en banc majority treated provider possession and network exposure as decisive. Carpenter later held that those features are not enough for historical CSLI.
Davis therefore should not be taught as the current rule for historical CSLI. It should be taught as the pre-Carpenter position that Carpenter displaced in material part.
Key Holdings at a Glance
Facts and Investigation
Davis and several co-defendants were prosecuted for a series of robberies in South Florida. The government's case included historical location records associated with Davis's cell phone.
Investigators obtained MetroPCS records through a court order issued under the Stored Communications Act rather than through a traditional search warrant based on probable cause.
At trial, the government used those records to show that Davis's phone connected with cell sites near several robbery locations at relevant times.
The location evidence became a significant part of the prosecution's proof tying Davis to the robbery series.
How Historical CSLI Works
Cellular networks divide service areas among cell sites. When a phone communicates with the network, the carrier can record which cell site and sector handled the connection. Historical records therefore can be used retrospectively to estimate where a phone was at particular times.
The precision of CSLI varies with network architecture, tower density, sectorization, technology generation, and the particular records produced.
Even when not GPS-precise, historical CSLI can reveal patterns of movement over days, weeks, or months.
The Stored Communications Act and § 2703(d)
At the time of Davis, the government used 18 U.S.C. § 2703(d) to obtain specified provider records upon a showing of reasonable grounds to believe the records were relevant and material to an ongoing criminal investigation.
That standard was lower than probable cause.
Davis argued that historical CSLI was sufficiently private that the Fourth Amendment required a warrant regardless of what the statute allowed.
The 2014 Panel Decision
A three-judge Eleventh Circuit panel initially sided with Davis on the constitutional issue.
The panel reasoned that historical cell-site information reveals a person's location and that individuals maintain a reasonable expectation of privacy in the record of their movements.
It therefore held that obtaining the data without a warrant violated the Fourth Amendment.
The panel nevertheless declined to suppress the evidence because officers had relied in good faith on then-existing statutory authority and judicial process.
The Eleventh Circuit subsequently granted rehearing en banc, which vacated the panel opinion.
The 2015 En Banc Decision
The en banc court rejected the panel's constitutional analysis.
It framed MetroPCS's cell-site records as the carrier's business records. Davis did not own the records, and the provider generated them in the ordinary course of operating the cellular network.
The court then relied on Smith and Miller to conclude that Davis lacked an objectively reasonable expectation of privacy in information exposed to the carrier through use of the service.
Accordingly, compelling the provider to produce the historical CSLI under § 2703(d) was not a Fourth Amendment search under the en banc court's pre-Carpenter analysis.
Smith, Miller, and the Third-Party Doctrine
The en banc Davis majority treated the case as a relatively direct application of the classic third-party doctrine.
| Case | Third-Party Record | Traditional Result |
|---|---|---|
| United States v. Miller | Bank transaction records | No reasonable expectation of privacy |
| Smith v. Maryland | Numbers dialed through telephone network | No reasonable expectation of privacy |
| United States v. Davis | Historical carrier cell-site records | No privacy under pre-Carpenter Eleventh Circuit rule |
| Carpenter v. United States | Historical CSLI | Third-party doctrine does not categorically eliminate privacy |
Davis demonstrates the doctrinal tension that Carpenter later resolved: should every provider-generated network record be treated like dialed telephone numbers, or does the revealing nature of longitudinal location data require different treatment?
The Problem of "Voluntary" Conveyance
The en banc court reasoned that cellular users expose information to the provider as calls are routed through cell towers.
But that concept of voluntary disclosure is more complicated than the disclosure of a dialed telephone number.
A user affirmatively enters a telephone number to place a call. Cell-site records, by contrast, are generated automatically by the network as the phone communicates with infrastructure.
Carpenter later emphasized this distinction. The Supreme Court concluded that CSLI is not voluntarily conveyed in the ordinary Smith/Miller sense merely because a phone must connect to cell sites in order to function.
Concurring Opinions and Digital-Age Concerns
The en banc Davis decision generated multiple separate opinions reflecting the unsettled state of digital privacy doctrine before Carpenter.
Several judges expressed concern about the breadth of historical location data and the difficulty of fitting modern cellular records into analog-era precedents.
Those concerns proved significant. Carpenter later adopted a more technology-sensitive approach and declined to extend Smith and Miller categorically to historical CSLI.
Carpenter v. United States Changed the Rule
In 2018, the Supreme Court held that the government's acquisition of historical CSLI in Carpenter was a Fourth Amendment search.
The government had obtained 12,898 location points covering seven days of Carpenter's movements. The Court concluded that this detailed retrospective location information implicated a reasonable expectation of privacy despite being held by wireless carriers.
Carpenter expressly refused to extend Smith and Miller categorically to this new form of digital record.
| Feature | Davis (En Banc) | Carpenter |
|---|---|---|
| Historical CSLI | Carrier business record outside Fourth Amendment | Protected against warrantless government acquisition in circumstances before Court |
| Third-party possession | Strongly dispositive | Not dispositive |
| Voluntary conveyance | Cellular use treated as disclosure to carrier | Automatic generation weakens voluntary-disclosure rationale |
| Location aggregation | Did not overcome third-party doctrine | Central to privacy analysis |
| Process | § 2703(d) order sufficient | Warrant generally required for covered historical CSLI |
Davis, Carpenter, and Chatrie
The Supreme Court's 2026 decision in Chatrie v. United States reinforces the direction of Carpenter.
Chatrie involved Google Location History rather than carrier CSLI. The Court again refused to treat provider possession as dispositive where the records could reveal protected physical movements.
The doctrinal progression is therefore clear:
| Stage | Rule |
|---|---|
| Smith / Miller | Traditional third-party doctrine for limited telephone and bank records. |
| Davis | Pre-Carpenter extension of that doctrine to historical CSLI. |
| Carpenter | Historical CSLI can remain private despite carrier possession. |
| Chatrie | Modern provider-held location history receives Fourth Amendment protection where it reveals sensitive physical movements. |
What Davis Means for Investigators Today
Davis remains useful for understanding history and for issues Carpenter expressly left open, but it is not a safe basis for obtaining ordinary historical CSLI without a warrant.
Carpenter described its holding as narrow and did not resolve every location-data question. Among the issues requiring independent analysis are:
- very short periods of historical CSLI;
- real-time CSLI;
- tower dumps;
- cell-site simulators;
- emergency disclosures;
- voluntary provider disclosures;
- location information obtained from other technologies;
- consent; and
- records obtained under another recognized exception.
Davis, AI, and Location Analytics
Modern location investigations rarely end with plotting individual cell towers on a map. AI and analytical platforms can transform raw location records into higher-order inferences.
Route Reconstruction
Software can infer likely travel paths from sequential location observations.
Pattern-of-Life Analysis
Repeated observations can identify likely home, workplace, routines, recurring meetings, and travel patterns.
Co-Location Analysis
Systems can identify devices that repeatedly appear near one another, creating association evidence.
Cross-Dataset Fusion
CSLI can be combined with ALPR, geofence, financial, camera, and communications records.
Confidence and Precision
AI can make weakly precise source records look more certain than they are. Analysts should distinguish measured facts from inferred positions or routes.
Technology in 2026
The technical environment is far more revealing than when Davis was decided.
More Dense Cellular Infrastructure
Modern cellular networks can generate richer network records than legacy systems, depending on technology and carrier architecture.
Location Data Comes From Many Sources
Investigators may encounter carrier CSLI, Google Location History, application telemetry, Wi-Fi records, Bluetooth encounters, vehicle data, ALPR, advertising identifiers, and other location sources.
Precision Varies by Dataset
"Location data" is not one category. Legal analysis should be tied to the actual technology and the information the records reveal.
Aggregation Is Cheap
Analytical tools can combine weeks or months of records instantly. The practical burden of surveillance has fallen dramatically since older third-party cases were decided.
Chatrie Extends the Modern Location-Privacy Trajectory
The Supreme Court's 2026 treatment of Google Location History confirms that provider-held location data should not be analyzed solely through ownership or traditional business- records labels.
Practical Guidance for Law Enforcement Agencies
1. Default to Warrants for Historical CSLI
For records within Carpenter's rule, use a probable-cause warrant absent a recognized exception.
2. Identify the Dataset Precisely
Do not use "cell phone location" generically. Specify historical CSLI, real-time CSLI, GPS, application location, tower dump, geofence, or other technology.
3. Define Duration
State the exact period requested. Duration affects both constitutional risk and nexus.
4. Explain Precision Honestly
Do not overstate what a cell-site connection proves geographically.
5. Preserve Provider Documentation
Maintain tower lists, sector information, field definitions, timing data, and carrier certifications.
6. Separate Raw Data From Analyst Inference
Maps, route reconstructions, and pattern-of-life conclusions should identify analytical assumptions.
7. Address Emergencies Separately
Exigent circumstances and emergency disclosure statutes require their own analysis.
8. Check State Law
State constitutions and electronic privacy statutes may require more than federal law.
9. Govern Cross-Dataset Fusion
If CSLI will be combined with ALPR, geofence, financial, or camera data, document the purpose and legal authority for each source.
10. Train the Historical Evolution
Personnel should understand that Davis represents pre-Carpenter law. Teaching it as the current warrant rule creates substantial suppression risk.
Historical CSLI Warrant Checklist
| Question | Why It Matters |
|---|---|
| What exact location record is sought? | Different technologies receive different legal treatment. |
| What date range is requested? | Duration affects privacy and probable-cause nexus. |
| What carrier holds the data? | Provider architecture and terminology vary. |
| What does each record field mean? | Necessary for accurate interpretation. |
| Does Carpenter apply? | Historical CSLI generally triggers its warrant rule. |
| Does Chatrie or another location case apply? | Other provider-held location systems may receive similar protection. |
| Is an emergency exception asserted? | Document facts supporting exigency separately. |
| Is the warrant geographically or temporally tailored? | Supports particularity and reasonableness. |
| Will analysts infer routes or precise locations? | Distinguish raw observations from analysis. |
| Will data be fused with other surveillance sources? | Aggregation can increase informational depth. |
| Does state law impose greater protection? | Federal law is not always the ceiling. |
Litigation Checklist for Agency Counsel and Prosecutors
- Identify the exact records acquired.
- Establish the legal process used and the date it was issued.
- Determine whether Carpenter applies retroactively to the issue being litigated and analyze good faith separately where relevant.
- Do not rely on the vacated 2014 Davis panel opinion as controlling law.
- Do not rely on the 2015 Davis en banc no-search holding where Carpenter governs.
- Develop carrier testimony or documentation explaining technical fields and precision.
- Build the exact collection timeline and requested date range.
- Separate raw CSLI from maps, routes, and analyst-generated conclusions.
- Analyze emergency, consent, or other exceptions independently.
- Check controlling state constitutional law.
- Preserve provider returns, affidavits, orders, warrants, and analytical files.
- Address Chatrie where modern provider-held location history is analogous.
Frequently Asked Questions
What did the en banc Eleventh Circuit hold in United States v. Davis?
In 2015, the en banc Eleventh Circuit held that Davis lacked a reasonable expectation of privacy in MetroPCS's historical cell-site records because they were provider business records governed by Smith and Miller's third-party doctrine.
Was there an earlier Davis decision?
Yes. A 2014 three-judge panel held that warrantless acquisition of the historical CSLI violated the Fourth Amendment but declined suppression under good faith. That panel opinion was vacated when the Eleventh Circuit granted rehearing en banc.
How long a period of records was involved?
Approximately 67 days of historical cell-site records were used in the prosecution.
Did investigators have a warrant?
No. They obtained the records under a Stored Communications Act § 2703(d) court order using a standard below probable cause.
Is Davis still the current rule for historical CSLI?
No. Carpenter later held that government acquisition of sufficiently revealing historical CSLI is a Fourth Amendment search generally requiring a warrant.
Did Carpenter formally overrule Davis by name?
Carpenter did not need to formally "overrule" a lower-court decision. As a Supreme Court decision, Carpenter supersedes inconsistent lower-court precedent within the scope of its holding.
Why keep Davis in the Case Law Center?
Because it is an important historical bridge showing how Smith and Miller were applied to digital location records before Carpenter changed the governing constitutional analysis.
Does Carpenter answer every cell-location question?
No. Carpenter expressly described its decision as narrow and left several categories, including some real-time and other surveillance techniques, for later cases.
How does Chatrie relate to Davis?
Chatrie continues the modern trend away from mechanically applying the third-party doctrine to provider-held records that reveal sensitive physical movements.
Primary Authorities
Official Eleventh Circuit en banc opinion.
Read the official Davis en banc opinion
Supreme Court decision holding that government acquisition of historical CSLI in the circumstances before the Court was a Fourth Amendment search.
Read the official Carpenter opinion
Supreme Court treatment of Google Location History and modern third-party location doctrine.
Read the official Chatrie opinion
Final Assessment
Davis is no longer the destination for historical CSLI doctrine. It is part of the road that led to Carpenter.
The en banc Eleventh Circuit took the classic third-party doctrine seriously and treated carrier-created cell-site records much like bank records and dialed telephone numbers. That approach was doctrinally understandable in 2015, but it underestimated how digital location records differ from the limited records in Miller and Smith.
Carpenter supplied the modern correction. Historical CSLI can provide a retrospective chronicle of physical movement, is automatically generated through ordinary phone use, and does not lose constitutional protection merely because a carrier stores it.
Chatrie extends that technology-sensitive approach into a different provider-held location system. Together, the cases make Davis valuable primarily as a historical and analytical contrast.