Sacramento County Sheriff's Department sued over 'Stingray' surveillance technology | The Sacramento Bee
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As Santa Clara County procures 'stingray' cell tracker, increased scrutiny surrounds potentially invasive device – The Mercury News
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Two years after they said they didn't, Toronto police admit they use Stingray cellphone snooping device | The Star
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US Marshals spent $10m on equipment for warrantless Stingray surveillance | Surveillance | The Guardian
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Police use of 'StingRay' cellphone tracker requires search warrant, appeals court rules - The Washington Post
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