UK prisons are to get state-of-the-art mobile technology that is not available to the public, but not the kind that inmates will appreciate.
Far from having reception issues, prisoners have been using smuggled-in mobile phones to carry on criminal business as usual. But that will soon change.
The Ministry of Justice has been conducting trials of mobile signal jamming equipment and plans to deploy mobile units to prisons, according to reports.
The equipment works by transmitting radio waves at the same frequency used by phones, preventing signals reaching the nearest transmission mast.
To enable the use of the technology, the government is considering legislation that will create a clear and transparent legal basis on which signal interference equipment can be used.