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License Plate Cameras Could Track Your Phone Now
License plate readers have long been used to track vehicles. Now, a new technology could allow those same systems to identify and follow the phones, smartwatches, and wireless devices people carry with them. Critics say the technology represents another major expansion of surveillance, while supporters argue it could help law enforcement investigations.
Photo by Michał Jakubowski
Most people assume license plate cameras are tracking their car.
What many don't realize is they may soon be tracking something far more personal.
Gear Spotlight- What Our Readers Are Picking Up
The phone in their pocket.
A new technology called SignalTrace is being marketed as the next evolution of license plate reader systems, allowing cameras to collect signals emitted by nearby electronic devices, including smartphones, smartwatches, earbuds, and other wireless gadgets.
And that's where the controversy begins.
According to reports, the technology can capture identifying signals broadcast by devices and associate them with a vehicle's location.
The result is a digital fingerprint that goes beyond a license plate.
Take the plate off.
Change vehicles.
The device signal can still help identify where someone has been.
At first glance, it sounds like a powerful investigative tool.
Supporters argue it could help law enforcement locate suspects, track stolen property, and connect people to vehicles involved in crimes.
But critics see something else.
A dramatic expansion of surveillance capabilities that could affect ordinary people who have done nothing wrong.
This is where things start to shift.
Traditional license plate readers focus on vehicles.
SignalTrace expands the picture to the devices people carry every day.
That means investigators may no longer need only a vehicle's license plate to establish movement patterns.
The technology could potentially create records linking individuals, devices, and locations over time.
And that possibility is raising concerns among privacy advocates.
The company behind the technology, Leonardo, already operates license plate reader systems across all 50 states through its law enforcement products.
The addition of device-tracking capabilities could significantly increase the amount of information collected by those networks.
There is one detail many people are overlooking.
Most modern electronic devices constantly broadcast signals to communicate with nearby systems.
The average person never notices it happening.
But those signals can reveal more than many realize.
If you've followed this so far, here's the part that actually matters.
The debate isn't really about technology.
The technology already exists.
The debate is about where the line should be drawn.
How much tracking is acceptable?
Who should have access to that information?
And what safeguards should exist to prevent abuse?
Those questions are becoming increasingly urgent as surveillance systems grow more sophisticated.
What began as cameras reading license plates is now evolving into something much broader.
And for many privacy advocates, that's exactly what worries them.
Because the bigger issue isn't what these systems can do today.
It's what they may be capable of tomorrow.
Editor's Note
New surveillance technologies are often introduced with a familiar argument: safety.
Most people support efforts to catch criminals and protect communities.
The challenge comes when tools designed for specific purposes gradually expand beyond their original scope.
History shows that surveillance capabilities rarely shrink once they're deployed.
Whether SignalTrace becomes a valuable law enforcement tool or another step toward mass monitoring will depend largely on how it is regulated, who can access the data, and how transparently it is used.
Those are questions communities may need to answer sooner rather than later.
