The German government is preparing a law that would allow the use of mobile phone jammers during major events and in prisons. The blocking of mobile phone use by criminals is seen as an important measure in the war against crime and terrorism.
By transmitting on the same radio frequencies as the mobile phone, a phone jammer can effortlessly stifle annoying chatter in movie theatres, at funerals or in hospitals. However, in many countries, including Germany, the technology is officially illegal. Phone jammers not only disrupt licensed services operated by the mobile carriers, but might also disrupt other services operating in adjacent bands.
Read the full article from The Register here.