With the development of modern communication technology, the proliferation of illegal mobile phones in prisons has become a global problem.signal jammer These mobile phones not only threaten the safety of prisons, but may also continue the criminal behavior of prisoners. cell phone jammer To meet this challenge, the South Carolina Department of Corrections has increased the use of high-tech means in recent years and successfully disabled hundreds of illegal mobile phones in Lee Correctional Institution. GPS jammer

　　The threat of mobile phone proliferation to prison safety

　　The existence of illegal mobile phones enables prisoners to continue various illegal activities inside and outside the prison. Wifi jammer These activities include not only planning jailbreaks and crimes, but also harassing victims and threatening witnesses. Brian Sterling, director of the South Carolina Department of Corrections, pointed out that if the use of these mobile phones cannot be effectively interfered with and prevented, the security inside and outside the prison will face great threats.

　　According to statistics, more than 700 illegal mobile phones have been found and shut down in Lee Correctional Institution in South Carolina since July 2023. This data shows that the presence of illegal mobile phones in prisons has reached an alarming level. Sterling stressed that without effective high-tech means, this problem will become even more uncontrollable.

　　Introduction of high-tech means

　　In response to the proliferation of illegal mobile phones, the South Carolina Department of Corrections launched a pilot program last summer to use high-tech means to identify and disable illegal mobile phones in prisons. The core of the program is to use the technology provided by the new FCC (Federal Communications Commission) order to identify the International Mobile Equipment Identity (IMEI) code of the mobile phone and use this code segment to shut down the communication function of the illegal mobile phone.

　　Sterling pointed out that since the launch of the program, Lee Correctional Institution has successfully shut down 790 illegal mobile phones. This effective technical means has not only improved the security of the prison, but also greatly reduced the threat of illegal mobile phones to prison management.

　　Limitations of traditional means and advantages of new technologies

　　Before the introduction of high-tech means, prison managers mainly relied on traditional search methods such as manual searches, surveillance videos and metal detectors. However, prisoners always find ways to circumvent these methods and continue to use illegal mobile phones. These traditional methods are not only time-consuming and labor-intensive, but also often have limited effects.