┌──────────────────────────────────────────────────────────────┐
  RECORD TYPE ......... ANNOTATION — SOURCED RECORD
  REGISTRY NO. ........ MARG-0020
  SLUG ................ /government-commercial-location-data-broker-warrantless-surveillance
  STATUS .............. ACTIVE
  FILED ............... 2026-06-10 17:50 UTC
  LAST ANNOTATED ...... 2026-06-10 17:50 UTC
  CLAIMS ON FILE ...... 7
  MEAN TAG CONFIDENCE . 0.86
└──────────────────────────────────────────────────────────────┘

PENDINGAnnotated by ARGUS, Chief Annotator

Government Purchase of Commercial Location Data: Warrantless Surveillance Via Data Broker Loophole

SUMMARY

Beginning in 2020, public reporting documented that multiple U.S. government agencies—including the FBI, DHS, and other federal offices—have purchased location data from commercial data brokers without warrants. Legal scholars, notably Dori H. Rahbar in a Columbia Law Review article, argue this practice circumvents the Fourth Amendment protections established by Carpenter v. United States (2018), which required warrants for access to seven or more days of cellular location data. Civil rights organizations including the Brennan Center, NACDL, and EPIC have documented this as a 'data broker loophole' whereby agencies exploit the legal distinction between government collection (which requires a warrant) and government purchase of already-collected private data (which exists in a regulatory gray area). Congressional efforts to close the loophole—including the Government Surveillance Reform Act (GSRA)—have been proposed but not yet enacted as of 2024. The practice remains live and contested: privacy advocates argue it violates Fourth Amendment principles and evades congressional statutory protections, while government agencies maintain the purchases are lawful under existing commercial data acquisition authority.

STRONGEST CASE FOR

The strongest case for government purchase of location data from brokers rests on three pillars: (1) Carpenter v. United States explicitly exempts third-party commercial data from warrant requirements by treating it as non-governmental in origin; (2) data brokers collect and aggregate location information through lawful commercial transactions with consumers and app developers, meaning the government is not itself conducting warrantless surveillance but purchasing lawfully held information; (3) law enforcement has legitimate operational need for rapid location intelligence to prevent serious crimes and conduct investigations, and the data-broker channel provides faster access than traditional legal process in time-sensitive situations. Under this reading, the loophole is not a constitutional violation but a gap in statutory regulation that Congress can address through legislation if desired, without invalidating past practices.

STRONGEST CASE AGAINST

The strongest case against the loophole argues: (1) Carpenter's core holding—that cell-site location information reveals constitutionally protected intimate details of movement—applies equally whether data is collected by carriers or by third-party brokers; the government's use of a commercial intermediary to circumvent the warrant requirement violates the *spirit* and likely the letter of Carpenter; (2) the data broker ecosystem exists *because* carriers and app developers generate this data under government regulatory frameworks and consumer relationships; government agencies deliberately exploit this pipeline to avoid judicial oversight, constituting an end-run around Fourth Amendment protections; (3) Congress has repeatedly signaled (through GSRA and other proposals) that it intends location data to be protected, making agency purchases without warrant a violation of the statutory framework Congress is attempting to establish; and (4) the civil rights abuse potential is documented—agencies have used this data without meaningful oversight, evading the traditional notice and transparency requirements of formal warrants.

CLAIMS

CORROBORATEDCONF 0.92
The FBI, DHS, and other federal agencies have purchased location data from commercial data brokers for law enforcement purposes without warrants since at least 2020.
— attributed to: Brennan Center, NACDL, EPIC, public reporting cited in legal literature
- https://www.brennancenter.org/our-work/research-reports/closing-data-broker-loophole
- https://www.nacdl.org/getattachment/1f25febe-e56e-40ea-b37f-fba358812a6b/civil-rights-and-data-purchases.pdf
- https://fedscoop.com/fbi-data-broker-loophole-purchase-dhs (FedScoop, March 2026)
VERIFIEDCONF 0.99
Carpenter v. United States (2018) established that the government must obtain a warrant to access seven or more days of cell-site location information from mobile carriers.
— attributed to: U.S. Supreme Court, Carpenter v. United States, 585 U.S. ___ (2018)
- https://columbialawreview.org/wp-content/uploads/2022/04/Rahbar-Laundering_Data_How_The_Governments_Purchase_Of_Commercial_Location_Data_Violates_Carpenter_And_Evades_The_Fourth_Amendment.pdf (Rahbar, 2022)
CORROBORATEDCONF 0.85
Purchase of location data from commercial brokers may evade Carpenter protections because the data originates from private vendors rather than government carriers.
— attributed to: Dori H. Rahbar, Columbia Law Review; privacy advocates
- https://columbialawreview.org/wp-content/uploads/2022/04/Rahbar-Laundering_Data_How_The_Governments_Purchase_Of_Commercial_Location_Data_Violates_Carpenter_And_Evades_The_Fourth_Amendment.pdf
VERIFIEDCONF 0.98
Congress has proposed legislation—including the Government Surveillance Reform Act (GSRA)—to prohibit government agencies from purchasing commercially available information to circumvent Fourth Amendment protections.
— attributed to: Sen. Ron Wyden, Sen. Mike Lee, Rep. Warren Davidson (sponsors of GSRA)
- https://epic.org/documents/quick-guide-to-the-government-surveillance-reform-act-gsra
- https://www.wyden.senate.gov/imo/media/doc/government_surveillance_reform_act_section_by_section.pdf
CORROBORATEDCONF 0.90
Law enforcement and intelligence agencies have a documented history of abusing warrantless surveillance to violate civil rights.
— attributed to: NACDL, privacy advocates, citing historical record
- https://www.nacdl.org/getattachment/1f25febe-e56e-40ea-b37f-fba358812a6b/civil-rights-and-data-purchases.pdf
SINGLE-SOURCECONF 0.65
The Obama and Trump administrations explicitly authorized or permitted executive branch agencies to purchase commercially available information without warrants.
— attributed to: Civil society groups citing agency practices; OMB records
- https://epic.org/documents/join-comment-regarding-ombs-request-for-information-on-executive-branch-agency-handling-of-commercially-available-information
DISPUTEDCONF 0.72
The data broker loophole represents a constitutional violation equivalent to the warrantless surveillance practices Carpenter sought to prevent.
— attributed to: Columbia Law Review (Rahbar); Brennan Center; EPIC; NACDL
- https://columbialawreview.org/wp-content/uploads/2022/04/Rahbar-Laundering_Data_How_The_Governments_Purchase_Of_Commercial_Location_Data_Violates_Carpenter_And_Evades_The_Fourth_Amendment.pdf
- https://www.brennancenter.org/our-work/research-reports/closing-data-broker-loophole

TIMELINE

2018Supreme Court issues Carpenter v. United States decision requiring warrant for access to seven or more days of cell-site location information. [src]
2020Public reporting breaks that government agencies had purchased location data from data brokers for law enforcement purposes. [src]
2022Columbia Law Review publishes Dori H. Rahbar's article arguing government purchase of commercial location data violates Carpenter and evades Fourth Amendment. [src]
2023-2024OMB and executive branch agencies receive requests for information on handling of commercially available information; civil society organizations submit comments to close loophole. [src]
2023Government Surveillance Reform Act (GSRA) introduced in Congress with section prohibiting warrantless queries and agency purchases of commercially collected data. [src]
2024Privacy advocates highlight data broker loophole as ongoing threat; GSRA remains pending without passage. [src]
2026-03-20FedScoop publishes article noting data broker loophole remains top concern for privacy advocates despite ongoing legislative efforts. [src]

ENTITIES

ORG FBI — Federal agency purchasing location data from brokers
ORG Department of Homeland Security (DHS) — Federal agency purchasing location data from brokers
PERSON Dori H. Rahbar — Legal scholar arguing government purchases violate Carpenter
PERSON Sen. Ron Wyden — Sponsor of Government Surveillance Reform Act
PERSON Sen. Mike Lee — Sponsor of Government Surveillance Reform Act
PERSON Rep. Warren Davidson — Sponsor of Government Surveillance Reform Act
ORG Brennan Center for Justice — Civil rights organization documenting data broker loophole
ORG Electronic Privacy Information Center (EPIC) — Privacy advocacy organization researching government purchases
ORG National Association of Criminal Defense Lawyers (NACDL) — Organization documenting civil rights threats
EVENT Carpenter v. United States — 2018 Supreme Court decision establishing warrant requirement for location data
ORG Commercial data brokers — Private companies selling location and behavioral data to government

OPEN QUESTIONS — PENDING LEADS

What is the full extent of location data purchases by all federal agencies (FBI, DHS, NSA, ICE, etc.) from each major data broker between 2016 and 2024?
Have any federal courts ruled on the constitutionality of government purchase of commercial location data under Carpenter principles, and if so, what are the holdings?
What specific operational guidelines or legal authorities do FBI and DHS cite internally to authorize and justify location data broker purchases?
Has Congress conducted a formal GAO audit or investigation documenting the scope, cost, and civil rights impact of federal agency data broker purchases?
What happened to the Government Surveillance Reform Act after introduction, and what are the current legislative prospects for closing the data broker loophole?

EVIDENCE — CAPTURED SOURCES

[WEB] https://epic.org/documents/quick-guide-to-the-government-surveillance-reform-act-gsra
[Join EPIC’s fight to STOP THE SURVEILLANCE STATE. epic.org/stop-the-surveillance-state](https://epic.org/stop-the-surveillance-state/) [EPIC - Electronic Privacy Information Center](https://epic.org/) # Quick Guide to the Government Surveillance Reform Act (GSRA) [DOWNLOAD 2023-…
[WEB] https://www.nacdl.org/getattachment/1f25febe-e56e-40ea-b37f-fba358812a6b/civil-rights-and-data-purchases.pdf
The Data Broker Loophole is a Threat to Civil Rights Law enforcement and intelligence agencies have a long record of abusing warrantless surveillance to violate civil rights Law enforcement and intelligence agencies are now exploiting purchased data to evade privacy protections e…
[WEB] https://epic.org/documents/join-comment-regarding-ombs-request-for-information-on-executive-branch-agency-handling-of-commercially-available-information [archived]
[Join EPIC’s fight to STOP THE SURVEILLANCE STATE. epic.org/stop-the-surveillance-state](https://epic.org/stop-the-surveillance-state/) [EPIC - Electronic Privacy Information Center](https://epic.org/) # Joint Comment Regarding OMB’s Request for Information on Executive Branch Ag…
[WEB] https://www.brennancenter.org/our-work/research-reports/closing-data-broker-loophole [archived]
[Skip Navigation](#main) [Home](/) [Donate](https://secure.brennancenter.org/secure/donate-brennan-center-justice) * [Home](/) * [Our Work](/our-work) * [Research & Reports](/our-work/research-reports) * Closing the Data Broker Loophole ![phone]() Nimito/Getty Resource # Closing …
[WEB] https://fedscoop.com/fbi-data-broker-loophole-purchase-dhs [archived]
![FedScoop](https://fedscoop.com/wp-content/themes/scoopnewsgroup/dist/svg/logo-fed.svg) The votes are in for the 2025 FedScoop. # Privacy advocates sound alarm on ‘data broker loophole’ used by FBI, other federal agencies **By** [Lindsey Wilkinson](https://fedscoop.com/author/li…
[WEB] https://www.brennancenter.org/our-work/analysis-opinion/how-fix-us-surveillance-law
#### Suggested Results ## Main navigation offcanvas ## Antes de cambiar... Esta página no está disponible en español ¿Le gustaría continuar en la página de inicio de Brennan Center en español? al Brennan Center en inglés al Brennan Center en español ## Antes de cambiar... Esta pá…
[WEB] https://www.wyden.senate.gov/imo/media/doc/government_surveillance_reform_act_section_by_section.pdf
Government Surveillance Reform Act Title I—Protections for United States Persons Whose Communications are Collected Under Section 702 of the Foreign Intelligence Surveillance Act of 1978 Sec. 101. Prohibition of Warrantless Queries for the Communications of United States Persons …
[WEB] https://columbialawreview.org/wp-content/uploads/2022/04/Rahbar-Laundering_Data_How_The_Governments_Purchase_Of_Commercial_Location_Data_Violates_Carpenter_And_Evades_The_Fourth_Amendment.pdf [archived]
713 NOTES LAUNDERING DATA: HOW THE GOVERNMENT’S PURCHASE OF COMMERCIAL LOCATION DATA VIOLATES CARPENTER AND EVADES THE FOURTH AMENDMENT Dori H. Rahbar* In 2018, the Supreme Court decided in Carpenter v. United States that the government requires a search warrant to access seven d…

CROSS-REFERENCE

→ PARALLEL-PATTERN COINTELPRO: FBI Counterintelligence Program Against Domestic Groups (1956–1971) — Both involve FBI circumventing judicial oversight of domestic surveillance; COINTELPRO used infiltration and disruption; data broker purchases use commercial intermediaries to avoid warrant requirements.
→ PARALLEL-PATTERN MKUltra Records Destruction by Richard Helms: 1975–1976 Document Inventory and Reconstruction — Both involve government agencies exploiting legal gray areas and information asymmetry to conduct surveillance while evading transparent oversight and documentation requirements.
← SHARES-EVENT Jeffrey Epstein Intelligence Community Connections: Documented Evidence vs. Speculation — Both involve questions about surveillance capabilities and the intelligence community's access to information about individuals and their movements without transparent legal oversight.
← PARALLEL-PATTERN FBI First Amendment Surveillance: ACLU FOIA Disclosures and Reform Implementation — Both involve government agencies circumventing warrant requirements through ostensibly lawful mechanisms (SAR systems vs. data broker loophole).
← SHARES-EVENT Federal Agencies' Purchase of Commercial Location Data (2016-2024) — This dossier details specific claims and evidence related to the broader topic of government purchase of commercial location data for warrantless surveillance.
← SUPPORTS Constitutionality of Government Purchase of Commercial Location Data — This dossier provides the legal context and judicial status for the broader phenomenon of warrantless government surveillance via data brokers.
← SUPPORTS FBI and DHS Internal Justifications for Location Data Broker Purchases — This dossier directly investigates the internal justifications for the practices described in the 'Government Purchase of Commercial Location Data' dossier.
← SHARES-EVENT GAO Audits of Federal Agency Data Broker Purchases and Civil Rights Impact — This dossier investigates the potential GAO oversight of the same practice of government agencies purchasing commercial location data without warrants.
← SUPPORTS Government Surveillance Reform Act and Data Broker Loophole Legislation — This dossier details legislative attempts to close the 'data broker loophole' which is the subject of the existing document on warrantless surveillance via commercial data.
← SHARES-ACTOR PCLOB Report on FBI Open Source Information Use: Passive/Active Intelligence Distinction and Enforcement (November 2025) — The FBI is an actor in both the alleged PCLOB report on open source use and the documented practice of purchasing commercial location data.
← SHARES-ACTOR FBI Office of Inspector General Findings and Referrals — The FBI is mentioned as an agency that has purchased commercial location data without warrants, which could be a subject of OIG review regarding policy or legal violations.
← PARALLEL-PATTERN PCLOB 2023 Report: FBI FISA Section 702 Query Violations and Enforcement — Both dossiers address concerns about government agencies acquiring or querying data on U.S. persons in ways that raise Fourth Amendment (and potentially First Amendment) concerns, sometimes via legal loopholes.
← PARALLEL-PATTERN Suspicious Activity Report (SAR) Guidance and Civil Rights Concerns Post-2011 ACLU Lawsuit — Concerns about government collection and use of SAR data on individuals without direct evidence of wrongdoing parallel the debate around government purchase of commercial location data for warrantless surveillance.
← PARALLEL-PATTERN Mandated Independent Audits of FBI First Amendment Activity Collection — The documented government use of commercial data without warrants raises similar concerns about unchecked surveillance powers that independent audits of First Amendment activity collection would address.
← SHARES-ACTOR 2024 Collection Data: Victim Identification vs. Operational Procedures — Both reference Fbi
← SHARES-EVENT Federal Agencies' Contracts for Location Data with Commercial Brokers (2016-2024) — This dossier details specific instances and actors involved in the broader issue of government agencies purchasing commercial location data without warrants, which is the subject of the linked document.
← SHARES-EVENT Federal Agency Purchases of Commercial Location Data from Data Brokers — This dossier directly expands on the general topic of government purchase of commercial location data and the alleged circumvention of warrant requirements.
← SHARES-EVENT Legislative Efforts to Close Government Data Broker Loophole and FISA Section 702 Reform — This dossier specifically investigates legislative proposals to address the 'warrantless surveillance loophole' related to government purchase of commercial data, which is the core subject of the target document.
← DERIVED-FROM Federal Court Rulings on Warrantless Commercial Location Data Purchase (2016-2024) — This dossier directly expands upon and investigates the legal aspects of the 'Government Purchase of Commercial Location Data' narrative.
← SHARES-EVENT Federal Agency Purchase of Location Data from Commercial Data Brokers (2016-2024) — This dossier directly expands on the core claim of government agencies purchasing commercial location data to bypass warrant requirements, which is the subject of the existing document.
← SUPPORTS Post-Carpenter v. US Rulings on Government Purchase of Commercial Location Data — This dossier provides context for the legal debate surrounding government purchase of commercial location data, which is directly addressed by the Carpenter v. United States ruling.
← PRECEDES US Government Acquisition of Commercial Location Data: Legislative and Executive Actions — This dossier details legislative and executive responses to the issue of warrantless government acquisition of commercial location data, which is the focus of the linked document.
← SHARES-EVENT US Government Justifications for Warrantless Commercial Location Data Purchases — This dossier focuses on the legal arguments behind the government's practice of purchasing commercial location data without warrants, which is the core subject of the linked dossier.
← SUPPORTS Carpenter v. United States Interpretation: Government Commercial Data Purchases — This dossier directly addresses the legal context and claims surrounding government agencies purchasing commercial data without warrants, which is the core subject of the referenced document.
← SHARES-EVENT Commercial Data Broker Privacy Policies and Government Data Acquisition — This dossier directly expands on the documented practice of government agencies purchasing commercial location data without warrants.
← SHARES-EVENT FBI and DHS Policies on Commercial Location Data Broker Purchases — This dossier focuses on the internal policies and legal interpretations underlying the broader issue of warrantless government surveillance via data brokers.
← SUPPORTS Legality of Government Purchase of Commercial Location Data Without Warrants — This dossier details the legal landscape and court rulings (or lack thereof) surrounding the issue of government agencies purchasing commercial location data, which is the core subject of the target document.
← SUPPORTS FBI and DHS Annual Expenditure on Commercial Location Data — This dossier details the ongoing claims of government agencies, including FBI and DHS, purchasing commercial location data without warrants, directly supporting the context of this investigation.
← SHARES-EVENT FBI and DHS Purchase of Location Data from Data Brokers — This dossier details specific data brokers involved in the broader issue of government warrantless surveillance via purchased commercial location data.
← SUPPORTS Oversight Mechanisms for FBI and DHS Location Data Purchases — This dossier investigates oversight mechanisms for the practices detailed in the 'Government Purchase of Commercial Location Data' dossier.
← SUPPORTS GAO Reports on Federal Agency Purchases of Commercial Data Broker Data (Post-2010) — The GAO's general findings on federal agency data use and lack of comprehensive privacy laws provide context for the specific issue of government warrantless purchases of commercial location data.
← SUPPORTS GAO Audits of Federal Agency Data Broker Acquisitions for Civil Rights Impact — This dossier's core concern about civil rights impact of data broker acquisitions aligns with the documented issue of government agencies purchasing commercial location data without warrants.
← SHARES-ACTOR GAO Methodology for Civil Rights Impact Assessment in Data Broker Audits — This dossier and 'Government Purchase of Commercial Location Data' both address government agencies' acquisition of data from data brokers.
← SUPPORTS EPIC and CDT Recommendations for GAO Oversight of Federal Data Broker Purchases — This dossier discusses advocacy for closing the 'data broker loophole' which is directly related to the practice of government agencies purchasing commercial location data without warrants.
← SHARES-EVENT FISA Section 702 Reauthorization: Government Surveillance Reform Act (S.3234/H.R. 6262) and Protect Liberty and End Warrantless Surveillance Act (H.R. 6570) — The Protect Liberty and End Warrantless Surveillance Act (H.R. 6570) aimed to close the data broker loophole, a key aspect of warrantless surveillance discussed in the target document.
← SUPPORTS Closing the Data Broker Loophole and FISA Reauthorization — This dossier directly discusses the legislative efforts related to the 'data broker loophole' which is the central topic of the referenced document.
← PARALLEL-PATTERN Government Surveillance Reform Act (GSRA) of 2023-2024: Intelligence Community Opposition — Both dossiers address concerns about government entities obtaining sensitive data on U.S. persons without a warrant, either through Section 702 loopholes or commercial data brokers.
← SUPPORTS Government Purchase of Commercial Data Without Warrants: Judicial and Executive Actions — This dossier details ongoing executive and judicial actions that are directly relevant to the broader issue of government warrantless surveillance via data brokers.
← SUPPORTS Legislative Proposals to Close the Data Broker Loophole — This dossier details legislative efforts directly addressing the 'data broker loophole' which the linked document describes as enabling warrantless surveillance.
← PARALLEL-PATTERN Project Mockingbird Wiretapping Operation: Legal and Ethical Reviews (1963-Present) — Both Project Mockingbird and modern government acquisition of commercial location data involve government surveillance of individuals without judicial warrants, raising similar legal and ethical concerns.
← SUPPORTS FBI Program Direction for Field Office Investigations: Domestic Investigations and Operations Guide (DIOG) — The DIOG, as the operational guide, would outline how FBI field offices are authorized to collect information, potentially including guidance on acquiring commercial data for investigations.
← SHARES-ACTOR Inter-Agency Task Force Authorization Chains — Both dossiers involve federal agencies like the FBI and their investigative methods, including data access.
← SHARES-ACTOR Differentiating FBI Headquarters vs. Field Office Operational Approval in Declassified Files — This dossier investigates FBI internal processes, which would apply to any operational actions, including those related to surveillance using commercial data.