United States v. Markus Patterson

Plain English (For Everyone)

The court ruled that your location data collected by your cell phone company isn't private if you voluntarily share it. Because you share this information with your provider, the police can get it with a court order without it being considered a search under the Fourth Amendment. This means evidence found using this data can be used against you.

For Legal Practitioners

The Eighth Circuit affirmed the denial of a motion to suppress CSLI, holding that a defendant lacks a reasonable expectation of privacy in data voluntarily disclosed to a third-party provider. The court applied the established third-party doctrine, finding that the acquisition of CSLI under 18 U.S.C. § 2703(d) did not implicate the Fourth Amendment.

For Law Students

This case illustrates the application of the third-party doctrine to cell phone location data. The Eighth Circuit determined that voluntarily providing CSLI to a service provider negates any reasonable expectation of privacy, meaning government acquisition via a § 2703(d) order is not a Fourth Amendment search.

Newsroom Summary

A federal appeals court ruled that cell phone location data shared with your provider is not private, allowing police to obtain it with a court order. The decision means evidence derived from this data can be used in criminal cases, impacting privacy expectations for smartphone users.

Standard of Review

De novo review. The Eighth Circuit reviews the denial of a motion to suppress de novo, applying the same legal standards as the district court.

Procedural Posture

The case reached the Eighth Circuit on appeal from the district court's denial of Markus Patterson's motion to suppress evidence obtained from his cell phone.

Burden of Proof

The burden of proof is on the defendant to show a reasonable expectation of privacy. The standard is whether the defendant has a reasonable expectation of privacy in the data sought.

Legal Tests Applied

Statutory References

Key Legal Definitions

Rule Statements

Patterson voluntarily conveyed real-time location information to his cell phone provider, and thus, he could not reasonably expect that the provider would not disclose that information to the government.

The Supreme Court has held that a person has no legitimate expectation of privacy in information he voluntarily turns over to third parties.

The government's acquisition of CSLI data pursuant to a § 2703(d) order does not constitute a search under the Fourth Amendment when the individual has no reasonable expectation of privacy in that data.

Remedies

Affirmed the district court's denial of the motion to suppress.

Judges

• Kermit E. Bye
• Roger L. Wollman
• Diana E. Murphy

Attorneys

• Jane Kelly
• John K. Williams

Scenario: You are under investigation for a crime and are concerned the police might obtain your cell phone's location history from your service provider.

Your Rights: You have a right to privacy in your location data, but this right is limited when you voluntarily share that data with a third-party service provider like your cell phone company. The government can obtain this data with a court order under 18 U.S.C. § 2703(d) if they show reasonable grounds to believe it's relevant to an investigation.

What To Do: Understand that your cell phone provider likely collects and uses your location data. If you are concerned about privacy, consult with an attorney about potential legal strategies and the limitations of privacy in third-party data.

Is it legal for the police to get my cell phone's location history from my provider?

Depends. The government can obtain cell site location information (CSLI) from your provider with a court order under 18 U.S.C. § 2703(d) if they demonstrate reasonable grounds to believe the information is relevant to an ongoing criminal investigation. This ruling suggests that if you voluntarily share your location with your provider, you have a diminished expectation of privacy in that data.

This ruling is from the Eighth Circuit Court of Appeals and applies to federal cases within that circuit (Arkansas, Iowa, Minnesota, Missouri, Nebraska, North Dakota, South Dakota). However, the legal principles regarding third-party data are widely applied.

For Cell phone users

Users should be aware that their location data, which is voluntarily shared with their service providers, is not considered private under the Fourth Amendment. This means law enforcement can access this data with a court order, potentially impacting privacy expectations and the ability to challenge such access.

For Law enforcement agencies

This ruling reinforces the government's ability to obtain CSLI data through existing legal mechanisms like § 2703(d) orders, provided they meet the statutory requirements. It simplifies the process of acquiring location data by reducing the likelihood of successful suppression motions based on Fourth Amendment privacy claims.

Q: What is United States v. Markus Patterson about?

United States v. Markus Patterson is a case decided by Eighth Circuit on March 24, 2025.

Q: What court decided United States v. Markus Patterson?

United States v. Markus Patterson 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. Markus Patterson decided?

United States v. Markus Patterson was decided on March 24, 2025.

Q: What is the citation for United States v. Markus Patterson?

The citation for United States v. Markus Patterson is 131 F.4th 901. Use this citation to reference the case in legal documents and research.

Q: What did the court decide in United States v. Patterson?

The Eighth Circuit affirmed the denial of Patterson's motion to suppress evidence from his cell phone. The court held that he had no reasonable expectation of privacy in his cell site location information (CSLI) because he voluntarily shared it with his provider.

Q: What is cell site location information (CSLI)?

CSLI is data generated by your cell phone that shows your approximate geographic location by identifying the cell towers your phone connects to. Your wireless provider collects this information.

Q: What if I don't use a smartphone, but a basic cell phone?

The principles regarding cell site location information generally apply to any device that connects to cell towers and generates location data. The key is the voluntary disclosure of that data to a third-party provider.

Q: Is United States v. Markus Patterson published?

United States v. Markus Patterson 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. Markus Patterson?

The court ruled in favor of the defendant in United States v. Markus Patterson. Key holdings: The court held that a defendant has no reasonable expectation of privacy in cell site location information (CSLI) voluntarily disclosed to a third-party service provider, such as a cell phone company.; The court reasoned that because Patterson voluntarily shared his location data with his service provider, he could not reasonably expect that data to remain private from the government.; The court affirmed the district court's denial of Patterson's motion to suppress, finding that the government's acquisition of CSLI data via a § 2703(d) order did not constitute a search under the Fourth Amendment.; The court applied the Supreme Court's precedent in *United States v. Miller* and *Smith v. Maryland*, which established that individuals have no reasonable expectation of privacy in information voluntarily disclosed to third parties..

Q: Why is United States v. Markus Patterson important?

United States v. Markus Patterson has an impact score of 60/100, indicating significant legal impact. This decision reinforces the application of the third-party doctrine to digital data, specifically cell site location information, holding that individuals have no reasonable expectation of privacy in data voluntarily shared with service providers. This ruling may impact how law enforcement can access location data in future investigations and could prompt further legal challenges regarding digital privacy rights.

Q: What precedent does United States v. Markus Patterson set?

United States v. Markus Patterson established the following key holdings: (1) The court held that a defendant has no reasonable expectation of privacy in cell site location information (CSLI) voluntarily disclosed to a third-party service provider, such as a cell phone company. (2) The court reasoned that because Patterson voluntarily shared his location data with his service provider, he could not reasonably expect that data to remain private from the government. (3) The court affirmed the district court's denial of Patterson's motion to suppress, finding that the government's acquisition of CSLI data via a § 2703(d) order did not constitute a search under the Fourth Amendment. (4) The court applied the Supreme Court's precedent in *United States v. Miller* and *Smith v. Maryland*, which established that individuals have no reasonable expectation of privacy in information voluntarily disclosed to third parties.

Q: What are the key holdings in United States v. Markus Patterson?

1. The court held that a defendant has no reasonable expectation of privacy in cell site location information (CSLI) voluntarily disclosed to a third-party service provider, such as a cell phone company. 2. The court reasoned that because Patterson voluntarily shared his location data with his service provider, he could not reasonably expect that data to remain private from the government. 3. The court affirmed the district court's denial of Patterson's motion to suppress, finding that the government's acquisition of CSLI data via a § 2703(d) order did not constitute a search under the Fourth Amendment. 4. The court applied the Supreme Court's precedent in *United States v. Miller* and *Smith v. Maryland*, which established that individuals have no reasonable expectation of privacy in information voluntarily disclosed to third parties.

Q: What cases are related to United States v. Markus Patterson?

Precedent cases cited or related to United States v. Markus Patterson: United States v. Miller, 425 U.S. 435 (1976); Smith v. Maryland, 442 U.S. 735 (1979).

Q: Does the Fourth Amendment protect my cell phone's location data?

It depends. The court ruled that if you voluntarily share your location data with your cell phone provider, you do not have a reasonable expectation of privacy in that data, and thus the government can obtain it with a court order without it being considered a Fourth Amendment search.

Q: What is the 'third-party doctrine' and how does it apply here?

The third-party doctrine states that you have no reasonable expectation of privacy in information you voluntarily give to a third party. In this case, Patterson voluntarily gave his location data to his cell provider, so the court applied this doctrine to find no privacy protection.

Q: What is 18 U.S.C. § 2703(d)?

This statute allows the government to obtain certain electronic records, including CSLI, from service providers by obtaining a court order. The government must show specific and articulable facts showing reasonable grounds to believe the information is relevant to an ongoing criminal investigation.

Q: Can the police always get my location data?

No, they generally need a court order under 18 U.S.C. § 2703(d). This ruling clarifies that if you voluntarily share data with your provider, the privacy bar for obtaining it is lower, but a court order is still typically required.

Q: Is this ruling binding in all U.S. states?

No, this ruling is from the Eighth Circuit Court of Appeals and is binding only on federal courts within that circuit (Arkansas, Iowa, Minnesota, Missouri, Nebraska, North Dakota, South Dakota). However, the legal principles are influential.

Q: Did the court find that Patterson had any expectation of privacy?

The court found that Patterson did not have a *reasonable* expectation of privacy in the CSLI data because he voluntarily disclosed it to his cell phone provider. This negated his Fourth Amendment claim.

Q: Are there any exceptions to the third-party doctrine for location data?

The law in this area is evolving, and some courts have expressed concerns about the broad application of the third-party doctrine to sensitive, constantly generated data like CSLI. However, as of this ruling, the doctrine remains a significant hurdle for privacy claims.

Q: What happens to the evidence obtained from Patterson's phone?

Because the court ruled that the acquisition of the CSLI was not an illegal search, the evidence obtained from Patterson's cell phone was not suppressed and can be used against him.

Q: How does this compare to GPS tracking?

This case specifically deals with cell site location information (CSLI), which is less precise than GPS data. However, the underlying principle of the third-party doctrine may apply to GPS data voluntarily shared with providers as well.

Q: How does United States v. Markus Patterson affect me?

This decision reinforces the application of the third-party doctrine to digital data, specifically cell site location information, holding that individuals have no reasonable expectation of privacy in data voluntarily shared with service providers. This ruling may impact how law enforcement can access location data in future investigations and could prompt further legal challenges regarding digital privacy rights. As a decision from a federal appellate court, its reach is national. This case is moderate in legal complexity to understand.

Q: How does this ruling affect my privacy when using a smartphone?

It means you should be aware that your location data, which is routinely collected by your provider, may not be considered private. Law enforcement can access this data with a court order, so your expectation of privacy is limited.

Q: What should I do if I'm concerned about my location data privacy?

You can review your cell phone provider's privacy policy to understand what data they collect and how they use it. You can also adjust location sharing settings on your phone and consider consulting with an attorney about your specific concerns.

Q: Does this ruling mean my cell phone provider can sell my location data?

This ruling specifically addresses government access to CSLI. While providers may have policies allowing them to use or share data for business purposes, this decision does not directly authorize them to sell your data. You should check their privacy policy.

Q: What are the practical implications for app developers?

App developers should be mindful of the data they collect, especially location data, and ensure clear privacy policies. Users' understanding of privacy is shaped by rulings like this, impacting trust and usage.

Q: Has the Supreme Court ruled on cell phone location privacy?

Yes, in Carpenter v. United States (2018), the Supreme Court held that the government generally needs a warrant to access historical CSLI, recognizing a higher expectation of privacy than previously assumed. However, Carpenter involved a warrant requirement, not a § 2703(d) order, and this Eighth Circuit case distinguishes itself by focusing on the voluntary disclosure aspect.

Q: What was the historical context of the third-party doctrine?

The third-party doctrine originated from Supreme Court cases in the late 1970s (e.g., Smith v. Maryland, United States v. Miller), which held that individuals have no expectation of privacy in information voluntarily turned over to third parties like phone companies or banks.

Q: What was the docket number in United States v. Markus Patterson?

The docket number for United States v. Markus Patterson is 23-2937, 23-3039. This identifier is used to track the case through the court system.

Q: Can United States v. Markus Patterson 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: What does 'motion to suppress' mean?

A motion to suppress is a request to the court to exclude evidence that may have been obtained illegally or in violation of a defendant's rights, such as through an unconstitutional search.

Q: What is the standard of review for a motion to suppress denial?

The Eighth Circuit reviews the denial of a motion to suppress de novo, meaning they look at the legal issues fresh, without giving deference to the district court's legal conclusions.