Techniques for deliberately interfering with electromagnetic frequencies (also known as interference) have been implemented in various devices, which are gradually being provided to individuals and organizations. Jammers are becoming smaller, more portable, easier to use and cheaper, despite the fact that jammer is illegal in most countries in the world. Although some jammers can block communication indiscriminately, there are several types of special equipment specifically designed to block certain signals. Among them, the most popular are cell phone jammers, wifi jammers, drone jammers, and even GPS jammers.
In most countries/regions, the authorities mostly disapprove of the use of these devices, the main reason being that their impact often exceeds expectations. Even deliberate use, such as prohibiting the use of mobile phones in schools, theaters and hospitals, or preventing drones from flying over private property, can cause damage beyond expectations. The interruption of 911 calls, the dropping of drones from the air, and the destruction of air traffic control are some unexpected consequences of human interference. These consequences have led countries such as South Africa and Israel to regard these jammers as completely illegal.
Another reason is that the authorities want to retain exclusive control over the use of these measures for law enforcement, security and military purposes. The United States, Canada, and India are some examples of countries that prohibit certain people (except certain law enforcement agencies) from using jammers. Italy goes one step further, even these agencies can only operate jammers with specific authorization. In Pakistan, Singapore, and Iran, the disruptor is only legal to the holder of the license, and it can be assumed that it is not easy for non-governmental entities to obtain these licenses. This is not to say that rules always make sense. In the UK, it is legal to own but not use cell phone jammers.
Jammer are often used around prisons and detention centers to prevent prisoners and detainees from communicating with the outside world without authorization and monitoring. Brazil, India, New Zealand, and Sweden are countries that have been exempted or are considering exemption from using cellphones and wifi blocker near prisons, while in the United Kingdom, it has become legal since 2012.
However, some countries have allowed or have proposed expanding the use of jammers. For example, in India, it is stipulated that jammers can be used in schools, mosques and theaters, provided that it can be proved that the interference will not exceed its interference range. For a short time, the jammer was also approved for use in theaters and concert venues, but the jammer was terminated in 2012.
So, what if you end up legally owning a cell phone jammer? You might consider booking the next flight to Ukraine. Since the government has taken a precautionary measure to prevent students from using mobile phones to cheat in exams, this is one of the few countries in the world where jammers are legal.
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