The proliferation of cell phones in Mexico City prisons has become a growing problem. Although the Federal District government installed signal jammers as early as 2010 in an attempt to prevent prisoners from using cell phones for criminal activities, it turns out that these devices have not achieved the desired effect. cell phone jammer Since 2006, more than 21,000 illegal cell phones have been seized in prisons in Mexico City, showing the failure of signal jammers and loopholes in prison management.GPS jammer

　　How prisoners get cell phones

　　There are many ways for prisoners to obtain cell phones, and corruption among prison security guards is one of the most serious problems. drone jammer According to relevant reports, some security guards inside the prison not only failed to prevent the entry of cell phones, but even directly participated in criminal activities to help prisoners obtain cell phones.

　　In a 2017 video investigation, a ransomware network was recorded operating smoothly in the prison through multiple cell phones, and the security guards acted as accomplices of this network. This situation shows that the management inside the prison is no longer effective in preventing illegal activities from happening, and the proliferation of cell phones has become a daily phenomenon.

　　The Diamond Module's Cell Phone Dilemma

　　As Mexico City's most secure prison module, the Diamond Module was designed to house the most dangerous criminals and prevent any unauthorized devices from entering. However, data shows that more than 1,000 cell phones were seized in the prison between 2012 and 2017. This number not only exceeds other prisons, but even larger prisons such as the South Prevention Prison and Santa Martha Acatitla Women's Prison.

　　The Diamond Module is equipped with a three-layer security filtering system designed to prevent illegal devices such as cell phones from entering. However, even so, cell phones continue to flow into the prison, indicating loopholes in prison management and the failure of signal jammers.

　　Failure of signal jammers

　　In 2010, the Federal District government of Mexico announced an investment of more than 24 million pesos to install signal jammers to block the spread of mobile phone signals. However, six years later, the authorities know very little about the operation and maintenance of these devices. In accordance with government transparency requirements, both federal and local governments said they were not aware of the operation of these devices.

　　Local governments claimed that the equipment was installed and operated by the federal government, so they had no right to know the details of the equipment. The federal government said that local governments should be responsible for the prison's signal blocking system. The two sides shirked the responsibility, resulting in the problem never being solved.