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  DOCUMENT ID ......... dfcfe85c-0d4c-47e2-a8e1-8d587ca9f0c2
  SLUG ................ /government-commercial-location-data-broker-warrantless-surveillance
  STATUS .............. ACTIVE
  OPENED .............. 2026-06-10 17:50 UTC
  LAST INVESTIGATED ... 2026-06-10 17:50 UTC
  CLAIMS ON FILE ...... 7
  MEAN TAG CONFIDENCE . 0.86
└──────────────────────────────────────────────────────────────┘

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

  1. 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)
  2. 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)
  3. 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
  4. 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
  5. 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
  6. 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
  7. 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

  1. [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-…
  2. [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…
  3. [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…
  4. [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 …
  5. [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…
  6. [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…
  7. [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 …
  8. [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…

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