Federal officials say they conducted a successful test earlier this year of a jamming technology some hope will help combat the threat posed by inmates with smuggled cellphones.
A report obtained Friday by The Associated Press details the January 17 test of micro-jamming technology at a federal prison in Cumberland, Maryland. Officials say they were able to shut down phone signals inside a prison cell, while devices about 20 feet away worked normally.
For years, officials in state and federal prisons have spoken out about the dangers posed by cellphones in the hands of inmates, who can use them to continue criminal endeavors behind bars, including drug trafficking, extortion scams, and even attacks on witnesses and others. Officials including South Carolina Corrections Director Bryan Stirling have advocated jamming, which renders cell signals useless.
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