Countries around the world use of signal jammers

Japan allows utilities to install cell phone jammer in public places such as theaters and concert halls if they are licensed by the government. Earlier this year, French government ministers approved a decision to install cinemas, concert halls and theaters, provided there were terms. Then you can make an emergency call.
Canada had considered allowing the blockade in similar circumstances. But Canada's industry ministry, which oversees the country's telecoms industry, has decided not to do so, saying the devices could undermine personal freedom and public safety. Paralyzed communication with law enforcement and security agencies.
Netline officials, who sold the first jammer in 1998, said they sold thousands of jammers a year and expanded their operations globally.
They are far from manufacturers. The devices are sold worldwide and dozens of suppliers sell them over the Internet.
In Scotland, Ronnie McGuire, the owner of electronic and electrical engineering services, imported Taiwan's mobile phone jammers and sold them to hotels, restaurants and hotels. Until local newspapers reported on their illegal activities in Britain.
Mr. McGuire said he would still import Taiwanese aircraft but would only sell them in countries where they are licensed.
Netline's marketing and sales director, Loreen Haim, won't say how many devices the company sells each year or which country buys the most.
In Mexico, Haim said, its main customers are Banks seeking to prevent potential thieves from communicating with their accomplices and the Mexican government, which plans to use powerful desktop wifi jammer in prisons.
The second thing you should worry about is wireless. Most smartphone users have a public place, wi-fi connection, not only their use on the Internet, but also the installation of updates and mobile processing information from their Banks. This is very dangerous, especially for users of Android, because the system's Android operation is a low-usage version of the SSL RC4 encryption algorithm. Many people want to compromise their personal information. They always share something on social networks.