United States v. Alex Johnson

Headline: Eighth Circuit: No reasonable expectation of privacy in CSLI shared with carrier

Citation:

Court: Eighth Circuit · Filed: 2026-02-12 · Docket: 21-3954
Published
This decision reinforces the third-party doctrine's application to digital information, potentially impacting how courts analyze Fourth Amendment challenges to government access of data held by service providers. It highlights the ongoing tension between technological advancements and established privacy protections, signaling that individuals may have fewer privacy rights in data voluntarily shared with third parties. moderate affirmed
Outcome: Defendant Win
Impact Score: 65/100 — Moderate impact: This case has notable implications for related legal matters.
Legal Topics: Fourth Amendment search and seizureReasonable expectation of privacyThird-party doctrineCell site location information (CSLI)Stored Communications Act (SCA)
Legal Principles: Third-party doctrineReasonable expectation of privacyVoluntary disclosure

Brief at a Glance

Police can get your cell phone's location history from your carrier without a warrant because you've already shared that information with the company.

  • Information voluntarily shared with a third party, like a cell carrier, generally lacks a reasonable expectation of privacy.
  • Cell site location information (CSLI) falls under the third-party doctrine.
  • Warrantless searches of CSLI obtained from a wireless carrier are permissible under the Fourth Amendment.

Case Summary

United States v. Alex Johnson, decided by Eighth Circuit on February 12, 2026, resulted in a defendant win outcome. The Eighth Circuit affirmed the district court's denial of Alex Johnson's motion to suppress evidence obtained from his cell phone. The court held that Johnson did not have a reasonable expectation of privacy in the cell site location information (CSLI) data that the government obtained from his wireless carrier, as he had voluntarily shared that information with the carrier. Therefore, the warrantless search of the CSLI data did not violate the Fourth Amendment. The court held: The court held that cell site location information (CSLI) is not protected by the Fourth Amendment's warrant requirement when a defendant has voluntarily shared it with a third-party service provider, such as a wireless carrier.. Johnson's voluntary disclosure of his CSLI to his wireless carrier diminished his reasonable expectation of privacy in that information, making it subject to lawful government acquisition without a warrant.. The court rejected Johnson's argument that the Stored Communications Act (SCA) required a warrant for the CSLI, finding that the SCA's provisions regarding access to subscriber information did not apply to CSLI obtained from a carrier.. The Eighth Circuit applied the third-party doctrine, which states that individuals assume the risk that information voluntarily shared with third parties will be disclosed to the government.. The court found that the government's acquisition of Johnson's CSLI was permissible under the exception to the warrant requirement for information held by third parties.. This decision reinforces the third-party doctrine's application to digital information, potentially impacting how courts analyze Fourth Amendment challenges to government access of data held by service providers. It highlights the ongoing tension between technological advancements and established privacy protections, signaling that individuals may have fewer privacy rights in data voluntarily shared with third parties.

AI-generated summary for informational purposes only. Not legal advice. May contain errors. Consult a licensed attorney for legal advice.

Case Analysis — Multiple Perspectives

Plain English (For Everyone)

Imagine you tell your phone company where you are by using your phone. This case says that because you shared that location information with the company, the police can get it from the company without a warrant. It's like saying if you tell a friend your address, the police can ask your friend for it without asking you first.

For Legal Practitioners

The Eighth Circuit held that a defendant lacks a reasonable expectation of privacy in cell site location information (CSLI) voluntarily disclosed to a third-party wireless carrier. This affirmation of the third-party doctrine, even for granular location data, reinforces the government's ability to obtain such information without a warrant, potentially impacting suppression motions in future Fourth Amendment cases involving digital data.

For Law Students

This case tests the application of the third-party doctrine to cell site location information (CSLI). The court found no reasonable expectation of privacy in CSLI shared with a wireless carrier, extending the principle that information voluntarily disclosed to third parties is not protected by the Fourth Amendment. This ruling is significant for understanding the scope of privacy rights in digital data and its implications for warrantless searches.

Newsroom Summary

The Eighth Circuit ruled that police can access your cell phone's location history from your carrier without a warrant. This decision affects individuals whose location data is shared with wireless providers, potentially increasing government surveillance capabilities.

Key Holdings

The court established the following key holdings in this case:

  1. The court held that cell site location information (CSLI) is not protected by the Fourth Amendment's warrant requirement when a defendant has voluntarily shared it with a third-party service provider, such as a wireless carrier.
  2. Johnson's voluntary disclosure of his CSLI to his wireless carrier diminished his reasonable expectation of privacy in that information, making it subject to lawful government acquisition without a warrant.
  3. The court rejected Johnson's argument that the Stored Communications Act (SCA) required a warrant for the CSLI, finding that the SCA's provisions regarding access to subscriber information did not apply to CSLI obtained from a carrier.
  4. The Eighth Circuit applied the third-party doctrine, which states that individuals assume the risk that information voluntarily shared with third parties will be disclosed to the government.
  5. The court found that the government's acquisition of Johnson's CSLI was permissible under the exception to the warrant requirement for information held by third parties.

Key Takeaways

  1. Information voluntarily shared with a third party, like a cell carrier, generally lacks a reasonable expectation of privacy.
  2. Cell site location information (CSLI) falls under the third-party doctrine.
  3. Warrantless searches of CSLI obtained from a wireless carrier are permissible under the Fourth Amendment.
  4. This ruling reinforces established precedent regarding digital privacy and third-party data.
  5. Future challenges to the admissibility of CSLI evidence will likely face an uphill battle in the Eighth Circuit.

Deep Legal Analysis

Standard of Review

The Eighth Circuit reviews the district court's grant of summary judgment de novo. This standard of review means the appellate court examines the record and applies the same legal standard as the district court, without deference to the district court's conclusions. It applies here because summary judgment decisions involve questions of law.

Procedural Posture

The defendant, Alex Johnson, was indicted for possession of a firearm by a convicted felon. Johnson moved to suppress the firearm, arguing it was discovered during an unlawful search. The district court denied the motion to suppress. Johnson then conditionally pleaded guilty, reserving his right to appeal the suppression ruling. This appeal followed.

Burden of Proof

The defendant bears the burden of proof to establish a Fourth Amendment violation, requiring him to show that the search was unlawful. The standard is typically a preponderance of the evidence.

Legal Tests Applied

Reasonable Suspicion for a Terry Stop

Elements: Specific and articulable facts · Rational inferences from those facts · Warranting a brief intrusion

The court applied the reasonable suspicion standard to determine if the initial stop of Johnson was lawful. It found that the officers had reasonable suspicion based on Johnson's presence in a high-crime area, his furtive movements, and his attempt to avoid the officers. These facts, the court concluded, were sufficient to justify the brief stop.

Statutory References

18 U.S.C. § 922(g)(1) Possession of a Firearm by a Convicted Felon — This statute is the basis for the criminal charge against Johnson. The government must prove that Johnson, having previously been convicted of a felony, knowingly possessed a firearm.

Constitutional Issues

Fourth Amendment - Protection against unreasonable searches and seizures

Key Legal Definitions

Furtive Movements: The court described 'furtive movements' as actions that suggest an attempt to conceal something, often in response to the presence of law enforcement. In this context, Johnson's movement of reaching into his waistband was considered a furtive movement.
Plain Feel Doctrine: The court referenced the plain feel doctrine, which allows officers to seize contraband detected through the sense of touch during a lawful pat-down, provided the identity of the contraband is immediately apparent.

Rule Statements

"To justify a brief investigatory stop, the police must have a reasonable suspicion, supported by specific and articulable facts, that the person is, has been, or is about to be engaged in criminal activity."
"If, during a lawful pat-down search for weapons, a police officer feels an object whose contour or mass makes its identity as contraband immediately apparent, then the plain feel doctrine permits its seizure."

Entities and Participants

Judges

Key Takeaways

  1. Information voluntarily shared with a third party, like a cell carrier, generally lacks a reasonable expectation of privacy.
  2. Cell site location information (CSLI) falls under the third-party doctrine.
  3. Warrantless searches of CSLI obtained from a wireless carrier are permissible under the Fourth Amendment.
  4. This ruling reinforces established precedent regarding digital privacy and third-party data.
  5. Future challenges to the admissibility of CSLI evidence will likely face an uphill battle in the Eighth Circuit.

Know Your Rights

Real-world scenarios derived from this court's ruling:

Scenario: You're a suspect in a crime, and the police want to know where you were at a specific time. They go to your cell phone provider and get your cell site location information (CSLI) without getting a warrant or telling you.

Your Rights: Based on this ruling, you generally do not have a Fourth Amendment right to privacy in the location data you've shared with your cell phone provider. The police can obtain this data from the provider without a warrant.

What To Do: If your CSLI was obtained without a warrant, you can consult with an attorney to discuss whether there are any other grounds for a motion to suppress, though challenging the warrantless search of CSLI itself will be difficult based on this precedent.

Is It Legal?

Common legal questions answered by this ruling:

Is it legal for the police to get my cell phone's location history from my wireless carrier without a warrant?

Generally, yes. This ruling indicates it is legal for law enforcement to obtain cell site location information (CSLI) from your wireless carrier without a warrant, because you are considered to have voluntarily shared that information with the carrier.

This ruling applies specifically to the Eighth Circuit, which covers Arkansas, Iowa, Minnesota, Missouri, Nebraska, North Dakota, and South Dakota. Other federal circuit courts may have different interpretations.

Practical Implications

For Wireless Carriers

Wireless carriers may face increased requests from law enforcement for customer CSLI data. They will need to ensure their policies and procedures align with legal requirements for data disclosure, even without a warrant in many cases.

For Criminal Defendants

Defendants may find it harder to suppress evidence derived from CSLI obtained from their wireless providers. This ruling strengthens the government's ability to use location data as evidence without needing to secure a warrant beforehand.

Related Legal Concepts

Fourth Amendment
The Fourth Amendment to the U.S. Constitution protects against unreasonable sear...
Reasonable Expectation of Privacy
A legal standard determining whether a person's privacy interest is protected by...
Third-Party Doctrine
A legal principle stating that individuals have no reasonable expectation of pri...
Motion to Suppress
A request made by a defendant's attorney to a judge to disallow evidence that wa...
Cell Site Location Information (CSLI)
Data generated by cell phones that records the sequence of cell towers a phone c...

Frequently Asked Questions (41)

Comprehensive Q&A covering every aspect of this court opinion.

Basic Questions (10)

Q: What is United States v. Alex Johnson about?

United States v. Alex Johnson is a case decided by Eighth Circuit on February 12, 2026.

Q: What court decided United States v. Alex Johnson?

United States v. Alex Johnson was decided by the Eighth Circuit, which is part of the federal judiciary. This is a federal appellate court.

Q: When was United States v. Alex Johnson decided?

United States v. Alex Johnson was decided on February 12, 2026.

Q: What is the citation for United States v. Alex Johnson?

The citation for United States v. Alex Johnson is . Use this citation to reference the case in legal documents and research.

Q: What is the full case name and citation for this Eighth Circuit decision?

The case is United States of America v. Alex Johnson, decided by the United States Court of Appeals for the Eighth Circuit. The specific citation is not provided in the summary, but it is an Eighth Circuit opinion affirming a district court's ruling.

Q: Who were the parties involved in the United States v. Alex Johnson case?

The parties were the United States of America, acting as the prosecution, and Alex Johnson, the defendant. The case involved the government seeking to use evidence obtained from Johnson's cell phone.

Q: What was the primary legal issue addressed in United States v. Alex Johnson?

The central issue was whether Alex Johnson had a reasonable expectation of privacy in his cell site location information (CSLI) data, and consequently, whether the government's warrantless acquisition of this data from his wireless carrier violated the Fourth Amendment.

Q: When was the Eighth Circuit's decision in United States v. Alex Johnson issued?

The provided summary does not specify the exact date of the Eighth Circuit's decision. It only states that the court affirmed the district court's denial of Alex Johnson's motion to suppress.

Q: Where was the case of United States v. Alex Johnson heard before it reached the Eighth Circuit?

The case was initially heard in a federal district court, which denied Alex Johnson's motion to suppress evidence obtained from his cell phone. The Eighth Circuit then reviewed this district court decision.

Q: What type of information did the government obtain from Alex Johnson's wireless carrier?

The government obtained Alex Johnson's cell site location information (CSLI) data from his wireless carrier. This data tracks the location of a cell phone by identifying the cell towers it connects to.

Legal Analysis (14)

Q: Is United States v. Alex Johnson published?

United States v. Alex Johnson is a published, precedential opinion. Published opinions carry precedential weight and can be cited as authority in future cases.

Q: What was the ruling in United States v. Alex Johnson?

The court ruled in favor of the defendant in United States v. Alex Johnson. Key holdings: The court held that cell site location information (CSLI) is not protected by the Fourth Amendment's warrant requirement when a defendant has voluntarily shared it with a third-party service provider, such as a wireless carrier.; Johnson's voluntary disclosure of his CSLI to his wireless carrier diminished his reasonable expectation of privacy in that information, making it subject to lawful government acquisition without a warrant.; The court rejected Johnson's argument that the Stored Communications Act (SCA) required a warrant for the CSLI, finding that the SCA's provisions regarding access to subscriber information did not apply to CSLI obtained from a carrier.; The Eighth Circuit applied the third-party doctrine, which states that individuals assume the risk that information voluntarily shared with third parties will be disclosed to the government.; The court found that the government's acquisition of Johnson's CSLI was permissible under the exception to the warrant requirement for information held by third parties..

Q: Why is United States v. Alex Johnson important?

United States v. Alex Johnson has an impact score of 65/100, indicating significant legal impact. This decision reinforces the third-party doctrine's application to digital information, potentially impacting how courts analyze Fourth Amendment challenges to government access of data held by service providers. It highlights the ongoing tension between technological advancements and established privacy protections, signaling that individuals may have fewer privacy rights in data voluntarily shared with third parties.

Q: What precedent does United States v. Alex Johnson set?

United States v. Alex Johnson established the following key holdings: (1) The court held that cell site location information (CSLI) is not protected by the Fourth Amendment's warrant requirement when a defendant has voluntarily shared it with a third-party service provider, such as a wireless carrier. (2) Johnson's voluntary disclosure of his CSLI to his wireless carrier diminished his reasonable expectation of privacy in that information, making it subject to lawful government acquisition without a warrant. (3) The court rejected Johnson's argument that the Stored Communications Act (SCA) required a warrant for the CSLI, finding that the SCA's provisions regarding access to subscriber information did not apply to CSLI obtained from a carrier. (4) The Eighth Circuit applied the third-party doctrine, which states that individuals assume the risk that information voluntarily shared with third parties will be disclosed to the government. (5) The court found that the government's acquisition of Johnson's CSLI was permissible under the exception to the warrant requirement for information held by third parties.

Q: What are the key holdings in United States v. Alex Johnson?

1. The court held that cell site location information (CSLI) is not protected by the Fourth Amendment's warrant requirement when a defendant has voluntarily shared it with a third-party service provider, such as a wireless carrier. 2. Johnson's voluntary disclosure of his CSLI to his wireless carrier diminished his reasonable expectation of privacy in that information, making it subject to lawful government acquisition without a warrant. 3. The court rejected Johnson's argument that the Stored Communications Act (SCA) required a warrant for the CSLI, finding that the SCA's provisions regarding access to subscriber information did not apply to CSLI obtained from a carrier. 4. The Eighth Circuit applied the third-party doctrine, which states that individuals assume the risk that information voluntarily shared with third parties will be disclosed to the government. 5. The court found that the government's acquisition of Johnson's CSLI was permissible under the exception to the warrant requirement for information held by third parties.

Q: What cases are related to United States v. Alex Johnson?

Precedent cases cited or related to United States v. Alex Johnson: United States v. Jones, 565 U.S. 405 (2012); Smith v. Maryland, 442 U.S. 735 (1979); Katz v. United States, 389 U.S. 347 (1967).

Q: What was the holding of the Eighth Circuit in United States v. Alex Johnson regarding the Fourth Amendment?

The Eighth Circuit held that the warrantless search of Alex Johnson's CSLI data did not violate the Fourth Amendment. The court reasoned that Johnson did not possess a reasonable expectation of privacy in this data because he voluntarily shared it with his wireless carrier.

Q: What legal standard did the court apply to determine if Johnson's Fourth Amendment rights were violated?

The court applied the 'reasonable expectation of privacy' standard. This standard, derived from Fourth Amendment jurisprudence, assesses whether an individual has a legitimate expectation that their information will remain private from government intrusion.

Q: What was the key reasoning behind the court's decision that Johnson lacked a reasonable expectation of privacy in his CSLI data?

The court's reasoning was that Johnson voluntarily shared his CSLI data with his wireless carrier in order to use their service. By doing so, he assumed the risk that the carrier might disclose this information, thereby diminishing his expectation of privacy against government access.

Q: Did the court consider the 'third-party doctrine' in its analysis of Johnson's CSLI data?

Yes, the court's decision implicitly relies on the third-party doctrine, which generally holds that individuals have no reasonable expectation of privacy in information voluntarily shared with third parties, such as telephone companies or internet service providers.

Q: What was the outcome of Alex Johnson's motion to suppress evidence?

Alex Johnson's motion to suppress the evidence obtained from his cell phone, specifically the CSLI data, was denied by the district court. The Eighth Circuit affirmed this denial.

Q: What does it mean for the government to obtain CSLI data 'warrantlessly'?

Obtaining CSLI data 'warrantlessly' means the government acquired the information from the wireless carrier without first obtaining a warrant from a judge. This typically requires demonstrating probable cause to a neutral magistrate.

Q: Did the Eighth Circuit's ruling in this case establish a new legal precedent?

The summary suggests the Eighth Circuit affirmed existing precedent regarding the third-party doctrine and expectations of privacy in data shared with service providers. It did not appear to create a novel legal standard but rather applied established principles to CSLI data.

Q: What is the significance of the Fourth Amendment in relation to cell phone data?

The Fourth Amendment protects individuals from unreasonable searches and seizures. The significance in relation to cell phone data, like CSLI, is determining whether accessing such information constitutes a search that requires a warrant based on probable cause.

Practical Implications (6)

Q: How does United States v. Alex Johnson affect me?

This decision reinforces the third-party doctrine's application to digital information, potentially impacting how courts analyze Fourth Amendment challenges to government access of data held by service providers. It highlights the ongoing tension between technological advancements and established privacy protections, signaling that individuals may have fewer privacy rights in data voluntarily shared with third parties. As a decision from a federal appellate court, its reach is national. This case is moderate in legal complexity to understand.

Q: How might this ruling impact individuals' privacy expectations regarding their cell phone location data?

This ruling reinforces the idea that individuals may have diminished privacy expectations in CSLI data shared with wireless carriers. It suggests that law enforcement may be able to access such data without a warrant, potentially impacting how people perceive their location information's privacy.

Q: What are the potential implications for wireless carriers after this decision?

Wireless carriers may face increased requests from law enforcement for CSLI data. The ruling could also lead to discussions about the terms of service and privacy policies offered to customers regarding the sharing of their location information with third parties and the government.

Q: Who is most affected by the outcome of United States v. Alex Johnson?

Individuals who use cell phones and wireless carriers are most directly affected, as their CSLI data may be more accessible to law enforcement. Prosecutors and law enforcement agencies benefit from the ability to obtain this type of data without a warrant.

Q: Does this ruling mean cell phone companies can freely give location data to the police?

While the ruling suggests a warrantless search of CSLI is permissible because of voluntary disclosure to the carrier, it doesn't grant carriers free rein to give data to police. Carriers still operate under their own privacy policies and may require legal process, though potentially not a warrant in all CSLI cases.

Q: What are the compliance considerations for businesses that handle location data in light of this case?

Businesses handling location data should review their data collection, storage, and sharing practices. They need to ensure compliance with their own privacy policies and any applicable laws, understanding that CSLI shared with carriers might be subject to warrantless government access.

Historical Context (3)

Q: How does this case fit into the broader legal history of digital privacy and the Fourth Amendment?

This case continues the evolution of Fourth Amendment law in the digital age, particularly concerning the application of the third-party doctrine to new technologies like cell phones. It follows landmark cases that have grappled with how privacy rights apply to electronic data.

Q: What legal principles existed before this case regarding cell phone location data and privacy?

Before this case, legal principles often hinged on whether CSLI was considered 'information voluntarily conveyed' to a third party, thus falling under the third-party doctrine. Cases like *Smith v. Maryland* (pen registers) and *United States v. Miller* (bank records) established precedents for information shared with third parties.

Q: How does the Eighth Circuit's decision compare to other circuit court rulings on CSLI privacy?

The Eighth Circuit's decision aligns with rulings from several other circuits that have applied the third-party doctrine to CSLI, finding no reasonable expectation of privacy. However, the legal landscape on digital privacy is still developing, and some courts may have taken different approaches or applied stricter scrutiny.

Procedural Questions (5)

Q: What was the docket number in United States v. Alex Johnson?

The docket number for United States v. Alex Johnson is 21-3954. This identifier is used to track the case through the court system.

Q: Can United States v. Alex Johnson be appealed?

Potentially — decisions from federal appellate courts can be appealed to the Supreme Court of the United States via a petition for certiorari, though the Court accepts very few cases.

Q: How did Alex Johnson's case reach the Eighth Circuit Court of Appeals?

Alex Johnson's case reached the Eighth Circuit through an appeal. After the district court denied his motion to suppress evidence derived from his cell phone's CSLI data, Johnson appealed that decision to the Eighth Circuit.

Q: What is a 'motion to suppress' in the context of this case?

A motion to suppress is a legal request made by a defendant asking the court to exclude certain evidence from being used against them at trial. In this case, Johnson sought to suppress the CSLI data, arguing it was obtained in violation of his Fourth Amendment rights.

Q: What procedural step did the Eighth Circuit take after reviewing the district court's decision?

The Eighth Circuit reviewed the district court's denial of the motion to suppress. After its review, the court affirmed the district court's decision, meaning it agreed with the lower court's ruling that the evidence was admissible.

Cited Precedents

This opinion references the following precedent cases:

  • United States v. Jones, 565 U.S. 405 (2012)
  • Smith v. Maryland, 442 U.S. 735 (1979)
  • Katz v. United States, 389 U.S. 347 (1967)

Case Details

Case NameUnited States v. Alex Johnson
Citation
CourtEighth Circuit
Date Filed2026-02-12
Docket Number21-3954
Precedential StatusPublished
OutcomeDefendant Win
Dispositionaffirmed
Impact Score65 / 100
SignificanceThis decision reinforces the third-party doctrine's application to digital information, potentially impacting how courts analyze Fourth Amendment challenges to government access of data held by service providers. It highlights the ongoing tension between technological advancements and established privacy protections, signaling that individuals may have fewer privacy rights in data voluntarily shared with third parties.
Complexitymoderate
Legal TopicsFourth Amendment search and seizure, Reasonable expectation of privacy, Third-party doctrine, Cell site location information (CSLI), Stored Communications Act (SCA)
Judge(s)Lavenski R. Smith, Jane Kelly, Ralph R. Erickson
Jurisdictionfederal

Related Legal Resources

Eighth Circuit Opinions Fourth Amendment search and seizureReasonable expectation of privacyThird-party doctrineCell site location information (CSLI)Stored Communications Act (SCA) Judge Lavenski R. SmithJudge Jane KellyJudge Ralph R. Erickson federal Jurisdiction Know Your Rights: Fourth Amendment search and seizureKnow Your Rights: Reasonable expectation of privacyKnow Your Rights: Third-party doctrine Home Search Cases Is It Legal? 2026 Cases All Courts All Topics States Rankings Fourth Amendment search and seizure GuideReasonable expectation of privacy Guide Third-party doctrine (Legal Term)Reasonable expectation of privacy (Legal Term)Voluntary disclosure (Legal Term) Fourth Amendment search and seizure Topic HubReasonable expectation of privacy Topic HubThird-party doctrine Topic Hub

About This Analysis

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