The Lawfare Podcast

Lawfare Archive: Matthew Tokson on Government Purchases of Private Data

13 snips
May 25, 2025
Matthew Tokson, a privacy expert and law professor at the University of Utah, dives deep into the controversial practice of government purchasing private data. He critiques how this trend potentially circumvents Fourth Amendment protections. Tokson explores the ethical dilemmas surrounding location data collection, emphasizing issues raised by landmark cases like Carpenter v. United States. He also discusses necessary legal reforms to bolster privacy rights and calls for more transparency in government surveillance tactics, highlighting the urgent need for updated regulations.
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ANECDOTE

Small Town Police Tracking Data

  • Matthew Tokson was prompted to investigate government data purchases after learning a small-town police department bought location data.
  • He was shocked by the ubiquity and extent of tracking people's movements by law enforcement.
ANECDOTE

Smuggling Tunnel Discovered via Data

  • The government used location data to uncover a drug smuggling tunnel between Mexico and the U.S.
  • They conducted a pretextual traffic stop based on purchased data to catch the trafficker.
INSIGHT

Carpenter Decision Spurs Data Purchases

  • The Supreme Court's Carpenter ruling requires warrants for cell site location data.
  • Law enforcement purchases of app-based GPS location data surged immediately after this ruling.
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