Tag: police gps

How To Use GPS Real Time Tracking Effectively

Here is a quick little story ripped from the headlines about the effective use of GPS real time tracking:

According to reports coming out of Boston, police recently made use of GPS real time tracking system to seize 360 pounds of marijuana and to make 3 arrests.

Upon executing a search warrant at a certain location, the police found a crate containing the illegal substance. After a brief field test that verified the contents of the crate, they were then able to get a second search warrant that allowed them to place a special GPS real time tracking device that allowed them to follow the crate to a new location.

The three suspects in the case were also observed trying to move the crate by loading it into a van. It was at this time that DEA agents made a move and captured them.

According to DEA estimates, the 360 pounds of marijuana would have had a street value of around $700,000.

There are a few different interesting aspects of this example that I thought were worthy of note. The first is that the police obtained a warrant to install the real time tracking device inside the crate. We have seen in two different cases where the use of GPS tracking has come under direct attack in the court system. Earlier this year, a Wisconsin court ruled that warrantless GPS tracking is legal. Then a few months later, a New York court ruled that warrantedless GPS tracking is illegal. It is no wonder that the police in this case wanted to play it safe and get a warrant before installing any GPS device.

It is also rather interesting the speed with which the police were able to get a warrant. I don’t have a time line sitting in front of me, but it sure sounds like the police were able to get what they needed in just an hour or so after discovering the illegal drugs. That is pretty fast, but is probably related to the fact that they verified that the substance in question was actually something that is illegal to posses.

The second important thing is the the police actually chose a GPS real time tracking system for this particular situation. When you want to track something that you want to take action on, like a fleet vehicle or a teen driver or a distressed spouse, then you need to have some real time information in order to take action on. Sometimes data logging GPS trackers will simply not cut it and you need something that is going to give you on demand information. The police realized this in this situation and choose an appropriate tracker. Are you doing the same for your tracking needs?

The third and final interesting thing is that the police let the criminals engage in enough activity to sufficiently incriminate themselves before swooping in for the arrest. If you are being tracked by the police with GPS then the last thing in the world you should be doing is committing a crime, but because the police were covert about they were able to install the device and catch the criminals read handed. This is important for those of use who will want to do some covert GPS vehicle tracking ourselves. Are we being wise about our device placement? Are we making sure we are in a position to take action on our real time data?

It can be a very fruitful exercise to examine the effective use of GPS tracking devices. It will help our minds better understand all of the useful applications of the great technology and examine our own practices. When we examine how we make use of GPS technology against these real life examples we are better able to see our own shortcomings and see areas for improvement. If we are using GPS real time tracking, do you think you can see any ways to improve your own use of this powerful technology?

GPS Tracking Blockers

Update 4/16/2012:  GPS jammers are illegal and should not be used.  After several events in recent years the US government has really began to crack down on GPS jammers since they pose a significant risk to public safety and  national infrastructure.  Consumers should not buy these devices unless they are approved by the FCC.  Any jammer in use should be retired and an alternative method to ensure location privacy should be employed since penalties for jammer use could exceed $100,000 and include jail time.

With all this talk about how the police sometimes can and sometimes cannot use GPS tracking on your car I did a little research to see if there was something that a private citizen could do to prevent such activity from occurring.  There is – it is called a GPS tracking blocker.  What this device appears to be is a sort of signal scrambler that will confusing the tracking unit, making your vehicle “invisible” to the satellite eyes in the sky.

How Does  a GPS Blocker Work?

As stated above, the blocker will work by emitting a signal that interferes with the signals transmitted by the Global Positioning System that orbits the earth overhead.  The effectiveness of these blockers is only a few meters, so making sure that you place your device in such a way that it will be able to block a device placed in the front or back of your car is important.  If you are driving a large tractor trailer and there are tracking devices installed somewhere in the trailer section then your blocker is probably not going to work.  Also, if you have a particularly large SUV or truck be sure that your blocker is going to have a radius that will cover your entire vehicle.

The signal that the GPS tracking blocker emits is 1/1000 of the radiant energy that a cell phone transmits so you can be sure that these devices are much safer to have near you than a cell phone.  Speaking of which, it is important to note that these devices will block regular navigation GPS units from working properly but it will not block the signal from a cell phone.  What this means is that if you cell phone uses some form of alternative to GPS to get its position information you are going to need to buy a cell phone signal blocker if you don’t want people knowing where you are because of your cell phone.

A Word On Criminals

Now I want to be clear, I don’t want any criminals to be buying cell phone blockers or GPS blockers so that they can go do some sort of illegal activity.  That is just wrong and I don’t want that to happen.   But I do know that there are going to be some law abiding citizens out there who don’t want the government to be able to tell them what they should and where they should be and who they should be associating with.  They want their private life to be their private life and they want to have it without the threat of the government knowing everything about them.

GPS blockers are for this type of person.  They obey the law, they just don’t want the law breathing down their necks.

Where Can I Buy A GPS Blocker

Amazon offers a pretty limited selection of GPS tracking blockers that can be found here:

These device are certainly not very cheap and range anywhere from $50-$150. They do seem very sturdy and able to withstand a lot of wear and tear, but anything with an antenna like the ones found on these devices needs the antenna to be in good working condition if it is to block the signals the way that you want it to. I personally have not tested any of these GPS tracking blockers myself, but they do seem like they should work. If you have one or try one out, I’d love to hear about it in the comments below.