The Wall Street Journal reports that a Texas judge is asking questions about whether investigators are providing courts with sufficient detail details on technlogies that allow them to grab data on all cellphones in a given area, including those of people who are most certainly innocent of any crime. Snip:
One of the investigative tools in question is something called a “cell tower dump,” which allows law enforcement to get information on all the phones in a given area at a given time.
In two cases, Magistrate Judge Brian Owsley rejected federal requests to allow the warrantless use of “stingrays” and “cell tower dumps,” two different tools that are used for cellphone tracking. The judge said the government should apply for warrants in the cases, but the attorneys had instead applied for lesser court orders.
Among the judge’s biggest concerns: that the agents and U.S. attorneys making the requests didn’t provide details on how the tools worked or would be used — and even seemed to have trouble explaining the technology.
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