Hack-A-Day friend [Limor] AKA [ladyada] has been promising a portable RF jammer for a while. guess what she sent me for Christmas? The Wave-bubble is a self tuning RF jammer – good for around 20 ...

Currently, cell phone jammers are illegal. Officials say they are necessary for protecting people from inmates who get their ...

He says cell phones are typically smuggled into prisons and commonly used by incarcerated individuals to direct drug trafficking efforts, concoct escape plans or coordinate acts of violence.

Cell phone signal jammers could help reduce crime coordinated from behind bars. But prisoner advocates say other solutions would be better.