The prison system in Mexico City has faced a huge challenge in recent years, namely preventing prisoners from illegally using mobile phones. cell phone jammer According to official data, more than 21,000 illegal mobile phones have been seized in the capital's prisons over the past decade, involving criminals such as the most dangerous murderers, kidnappers and extortionists. GPS jammer The discovery of these mobile devices is not just an individual incident, but a systemic problem, and even in high-security prison areas, such as the famous "diamond module", the circulation of mobile phones cannot be effectively prevented.Wifi jammer This article will explore the prevalence of illegal mobile phones in Mexico City prisons, the application of technology to block signals, and the challenges in its implementation.signal jammer

　　The prevalence of mobile phones in prisons

　　The prevalence of mobile phones in Mexico City prisons is worrying. Data shows that even in the so-called most secure prison modules, such as the "diamond module", there is a large influx of illegal mobile phones. From 2012 to 2017, a total of 1,000 illegal mobile phones were seized in the diamond module, which is dedicated to the most dangerous prisoners. Shockingly, this prison area with theoretically the highest security level has seized more mobile phones than other larger and more populated prisons.

　　These data clearly show that Mexico City's prisons are unable to effectively prevent the circulation of illegal mobile phones. Nevertheless, the problem is not limited to prisoners illegally owning mobile phones, but more importantly, these phones are used to coordinate criminal activities, especially telephone extortion. In 2010, there were 354 reported cases of telephone extortion, and by 2016, this number increased to 911, many of which were related to prisoners in prisons.

　　Dilemma of installation and operation of blocking equipment

　　In response to the problem of illegal mobile phones, the Mexico City government announced in 2010 that it would invest more than 24 million pesos to install signal blocking equipment in the city's prisons. The purpose of the blocking equipment is to block mobile phone signals to prevent prisoners from using their phones for illegal activities. However, six years later, the situation shows that the implementation and maintenance of this technology are fraught with problems.

　　According to reports, the authorities seem unclear about who is responsible for the management and maintenance of these blocking devices. The capital and federal authorities are shirking the responsibility for the management and ownership of the equipment. The official response of the deputy minister of the Mexico City prison system stated that the installation and operation of these devices are the responsibility of the federal government, while the federal government claims that the prison system belongs to the capital. Such a chaotic allocation of responsibilities has resulted in the maintenance and effectiveness of the blocking equipment being left unaddressed.

　　In addition, although the government contracted a company in 2011 to purchase 155 mobile phone blocking devices, the actual effectiveness and operating conditions of these devices have been opaque. There is no clear report on whether the devices are still functioning properly, whether they are regularly maintained, or whether they need to be updated and replaced.