Need install cell phone jammers in prisons

With the continuous development of mobile phone this mobile communication tools and popularization, improving continuously the personal mobile communications technology, especially the 2 g, 3 g, 4 g, 5 g technology promotion and application of the step by step, like prison, reeducation-through-labor centers, detention and rehabilitation centers, school examination room, meeting room, church forces, military area commands and similar areas is more and more prominent, the negative effect in the prison, detention and other places of regulation, cell phone mobile communications tools were banned, not only for the prisoner, so should to regulators. Once the mobile phone is brought into the prison and put into use, it will bring great harm to the management, safety and development of the prison. Some prisoners through illegal smuggling mobile phones in prison, phone calls, text messaging, access to materials and threatened witnesses, to the state confidential information leakage, the use of mobile phones for illegal trade, transfer confidential information with the outside world even form a gang and organizations such as prison break, etc., and because of that, in drug prison jail the labor camps and other places to install cell phone jammer