Corrections has quietly removed all cellphone jammers from prisons.
The technology, introduced in 2008-09 to prevent inmates using smuggled mobile phones, has cost more than $17 million.
But signal blocker have not been in use since June after being found to interfere with new prison guard safety systems.
When announcing their introduction, then Corrections Minister Phil Goff said cellphone blocking in New Zealand prisons was a major step forward that will stop prisoners committing further offences while behind bars.
Stuff recently obtained details under the Official Information Act about the number of cellphones seized from the 18 prisons run by Corrections over the past three years.
There were 626 cellphones and more than 750 cellphone-related items (such as batteries, chargers, SIM cards etc) found by Corrections staff between January 2023 and November this year.
When asked why inmates would be smuggling cellphones when the prison’s had the mobile signal jammer that should render them useless, Corrections chief custodial officer Neil Beales said the cellphone jammers were removed in June.
The jammers had been found to interfere with new safety systems such as Corrections officer safety alarms, he said.
Advances in cellular technology had also resulted in jammers becoming “increasingly obsolete”.
It was “only one of a number of tools used to stop cellphones being used in prisons” and a number of “more effective tools” remain in place, Beales said.
These include Cellsense devices, which detect a range of metals found in cellphones, alongside screening and x-ray capability as well as detection dogs.
“Some people in prison go to extreme and elaborate lengths to introduce contraband into prisons, and we are constantly working to stay one step ahead of new methods used to introduce contraband into our prisons,” Beale said.
Corrections was looking at new and emerging technology to complement systems already in place, he said, and had started introducing the use of full body imaging technology at a number of sites to detect contraband that has been concealed on or in a person’s body.
In 2018 Corrections admitted cellphone jamming technology created a communications blind spot near Rimutaka Prison, meaning residents of a child sex offender unit outside the wire could not be tracked on-site at the facility.
Cellphones could be used by inmates to put pressure on others outside the wire, or to co-ordinate drug deals, and other offending. In May this year nine prison staff at Rimutaka were suspended for alleged misconduct, including the smuggling of cellphones into the prison.
Drug and alcohol counsellor and criminologist Roger Brooking, who has been critical of the spending on jammers from the outset, said it was not surprising that Corrections had ditched the technology.
“They don’t work. They never have worked,” he said.
“What prisoners have told me is that they have always managed to find areas within the prisons where the jammer just doesn’t seem to operate. So prisoners have been able to continue making cellphone calls to conduct drug deals, talk to family or whatever.”
Signal jammers are very popular in many countries, and in the United States, a world economic power, the demand for cell phone jammer and other jammers is increasing. Jammers bought signal blocking devices. is a professional manufacturer and distributor. for providing security and protection measures for key industries in the American market.
We are well aware that there are many effective and most important professional VCRS on the market. But as long as we are in such a vulnerable position, there is a digital card in the form of a digital recorder that we constantly investigate and recommend to the best surveillance agencies in Italy and abroad. The recorder card not only has the aesthetics for the given task, but also the ability to start high-quality recordings thanks to many interesting features that we will list below.
I may be a little exaggerated, but there are some problems in the business world that can have real consequences. In fact, it is not uncommon for entrepreneurs to be intercepted by unauthorized persons, such as people who spy on competitors or business partners, politicians in campaigns, production supervisors who steal trade secrets, military or government control. Therefore, be aware that in hidden locations, the sound between bits and data remains on the ether and can even be eavesdropped!
This means that we must not only know where we are, but also where we are going. Satellite systems always know where we are. Also note that when you use the Observer.net, the Observer.net may use this information to harm us. Therefore, it may make it difficult to track down people who want to join private companies (oh, marital infidelity...) or people who work for multiple companies on behalf of the Ministry of Commerce but don't want to know. These two addresses are for customers. The other end, or more simply, is a truck driver who wants to drive for a long time to take a nap. It can also be used in cars equipped with 4G cellular signal jammers. Equipped with the latest SMD components and integrated circuits, the phone has advanced anti-interference functions, is easy to install and use, and can work continuously for a long time. Be careful to choose the correct position of the shield and avoid rotation.
If you think it's expensive, a GSM-compatible car anti-theft system can make your car 100% safe from all kinds of thieves and kidnappers and give you a variety of options for controlling your car. I may be wrong. Of course, a smartphone or a simple mobile phone can be used as a remote control for a car alarm, but don't forget that these modern smartphones are vulnerable to all kinds of hackers and attacks. Therefore, using a mobile device as a remote control for a car alarm is not the best idea. However, there are some advantages to the GSM car anti-theft system. First of all, all the code-catching jammers used to hijack vehicles are completely inoperable. You can also start the engine remotely. This is very useful if you park your car outside in the winter.
However, there are some fairly old and well-known methods to bypass these GSM alarms. First of all, one of the most effective devices is a device that can fake a cell phone tower. These handheld jammers have recently been used by US authorities for persecution purposes. That is, these devices pretend to be cell towers, making all GSM devices think they are connected to a cell tower and all traffic is routed through the gadget. Using this gadget affects GSM alarms.
Another point to consider when dealing with such alarms is that you cannot use a GSM blocker. This alarm will also not work if someone nearby is using a cell phone signal jammer. No one can lock or unlock it. However, considering the recent research of Don Bailey and Matthew Solnic, this feature can be considered a good security measure. I will start with a device that I recently developed. The code can be deciphered by decoding the encryption algorithm of the GSM alarm. Security experts have calculated that the cost of building such a device could be as low as $5,000. But now it gets worse. I have already mentioned Don Bailey and Matthew Solnic. A security vulnerability was found in the GSM communication protocol.
Even modern GSM alarms with two-way communication and interactive codes are vulnerable to this vulnerability. A malicious individual with technical knowledge can access the vehicle through such alarms and even start the engine remotely. All you need to do is send a specific SMS to the alarm with the code for the desired action. The same functionality works with various smartphone apps for car remote controls. Don Bailey and Matthew Solnic conducted many tests to discover this vulnerability. "Just connect your laptop to a GSM network that supports M2M (Machine to Machine) technology. This system allows devices to exchange data over the GSM network. Once connected to the network, you will be connected to the same GSM network. You will be able to connect now that you have found a way to send commands such as "turn off the alarm" and "start the engine".
Here are some questions raised by our UK customers, and we have summarized them into FAQs to reply to everyone.
1. Please tell me - what will you write on the document to send the product to me in the UK? If it says jammer, it will go into a black hole and cannot be delivered. So what will you write on the document to pass customs smoothly, such as,
Generally, we will write the product names such as signal amplifiers, routers, etc., but not the name of the signal jammer.
2. I need to know which products I will get - portable GPS car alarm, WiFi handheld portable 5G jammer and portable jammer detector? Please confirm that all products can be used in the UK?
WIFI and GPS signals are universal worldwide; and the mobile phone signals in each country are different, so we will customize the corresponding frequency according to your receiving country.
4G LET (3.9G) is not a real 4G network! 4G LTE was proposed by the 3gpp organization in response to the emergence of WiMAX. The latest LTE-Advanced released by 3gpp is the full name of 4G technology.
1) The WiMAX standard is set by IEEE, and the LTE standard is set by 3GPP. The above two points have different basic protocols, but it is said that smooth interoperability will be achieved over time.
2) The goal of WiMAX is to achieve broadband mobility, and its predecessor is WLAN (WiMAX has an advantage in speed and a disadvantage in mobility). The goal of LTE is to achieve broadband mobile communications, and its predecessors are GSM\WCDMA\HSPA (LTE has an advantage in mobility and a disadvantage in speed).
The final rate results are similar!
We customize the jammer signal according to the customer's local frequency, other shops send the same jammers all over the world with poor shielding effect!!