May 122014
 May 12, 2014  Posted by  Surveillance, U.S.

Eric Litke reports:

Police in Wisconsin have at least two devices that secretly track cellphone locations in real time to target suspects or missing persons — technology that simultaneously mines data from hundreds or thousands of unsuspecting people nearby.

The devices — known by the trade name Stingray — raise an array of concerns for privacy advocates because law enforcement officials won’t say how often the device is used, how the data is used or kept, or whether they get a warrant from a judge before using it.

Read more on The Northwestern.

Thanks to Joe Cadillic for this link.

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