Smuggling is a huge problem for the judiciary, not only because the number of undiscovered devices is also high. "Cell phones are a security risk because the inmates' contact with the outside world cannot be controlled," said Stolpe. Prisoners could, for example, influence witnesses in court proceedings through telephone calls, forge escape plans with people outside the institution or organize drug deals.
UK prisons face crisis caused by tens of thousands of smuggled cell phones, investigation reveals. Cons use them for everything from running criminal empires outside of prison walls to intimidation and order medication inside them. Now prison officials are calling for tougher cracks around this "cancer" - including blocking calls with jammers. Has exposed time and again showing booze and drug parties and recording bare ankle measurements.
Hidden in fish cans, thrown over the wall at night or smuggled by lawyers - more and more mobile phones are illegally entering the five penal institutions in Mecklenburg-Western Pomerania. 408 smartphones and cell phones were seized during controls in 2014. In the first half of this year there were 158 mobile devices.
The Baden-Württemberg JVA Offenburg was the first German prison to install cell phone jammer five years ago. To avoid interference with cell phones outside the prison, 700 small jammers were installed throughout the property. Cost: around one million euros.
Jammers and socket cards were identified as devices the government planned to implement to curb cellular use. The antennas take three to four weeks to install and leave users with no signal, including 3G and 4G gang. The devices work by sending their own radio signals to encrypt transmissions in a specified area. The technology can be twinned with trackers that identify individual phones being blocked.