In prisons or detention centers, it is no news to install cell phone jammer systems. If you ask the purpose of installing cell phone jammer systems in prisons, many people will answer quickly and directly: Of course, it is used to shield prisoners in prison. The cell phone signal is used to prevent them from communicating with the outside world. In fact, this is only an answer to the superficial question, and does not conduct an in-depth analysis of the essence of the problem.

Why were prisons established? Of course, criminals are detained. Can criminals communicate with the outside world in prison? In fact, it is possible, but there are many restrictions on this kind of external contact. For example, you can only contact with designated relatives and friends, and you must use the fixed phone installed in the prison. There are also restrictions on the call time. So what is the purpose of installing cell phone jamming systems in prisons? Obviously, this is not the normal and compliant external contact for criminals.

As an important place of supervision for detaining criminals, prisoners serving sentences are not allowed to carry, possess and use mobile communication terminals such as cell phones. In a prison with a sound management system and full implementation of various inspection and review measures, normally speaking, cell phones are not allowed to be brought into the prison, let alone handed over to inmates. Since under normal circumstances, criminals do not have cell phones in their hands, why do prisons install cell phone jammer systems?

It is necessary to observe whether all the management systems of the prison have been fully implemented and implemented. As the old saying goes, one hundred secrets and one sparse. If these personnel are not self-disciplined enough, do not keep their cell phones well, or even directly communicate with the inmates, and simply hand over their cell phones to criminals for use, then things will get worse. For such illegal acts, the overall process is very difficult. It is concealed and cannot be detected and stopped immediately, so as the prison management, it can only adopt the method of installing a cell phone jammer system to directly block all cell phone signals in the prison. In this way, even if a few cell phones are brought into the prison, due to the existence of the cell phone jammer system, the cell phone will have no signal and cannot communicate with the outside world normally.

From the previous analysis, it can be seen that the superficial phenomenon is that the purpose of installing cell phone jammer systems in prisons is to target criminals from using cell phones. More serious violations of prison terms regarding restrictions on cell phone use.