Why should the detention center install a mobile phone signal shielding system?

In recent years, detention centers have been implementing cell phone jammer systems as part of their digital infrastructure projects. These systems have been widely accepted and installed, becoming an effective tool in the detention center environment. Some may question the need to install cell phone jammers, as suspects are prohibited from bringing their phones into the detention center. However, the reality is much more complicated.

In a typical detention center, personal belongings, including mobile phones, are confiscated from suspects on their first day of detention. These items are only returned after they are released from the detention center. Under normal circumstances, it would seem that cell phone jammers are not needed, as there are no mobile phones in the detention center. However, this assumption is not entirely accurate.

Detention centers not only hold suspects, but also various staff responsible for supervision, food service, health care, maintenance, etc. Unfortunately, some of these personnel may try to bypass the supervision system and bring their personal mobile phones into the detention center without permission. In addition, these phones may be given to suspects for use.

Once a suspect obtains a mobile phone, he or she can use it to secretly communicate with the outside world, which poses a great risk. Previous news reports have reported that suspects have used hidden mobile phones for malicious activities, such as revenge, organizing further criminal activities, etc. Therefore, the purpose of installing a cell phone signal jammer in a detention center is to prevent and stop suspects from using their phones to contact the outside world, effectively isolating them from the outside world.

It should be noted that the cell phone signal jammer does not need to achieve 100% coverage throughout the detention center, but rather can identify key areas that need to be focused on, which usually include hidden places or smaller spaces where people can easily avoid crowds and find privacy. On the other hand, public halls, outdoor playgrounds, open areas, and locations under direct surveillance may not require a cell phone signal jammer because suspects are unlikely to use their phones openly in these easily observed places.

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