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this post was submitted on 05 Feb 2026
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Technology
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There's a lot of interesting tech for everyone if you now where to look.
Eff developed software that can run on cheap hardware which will detect Stingrays: https://www.eff.org/deeplinks/2025/03/meet-rayhunter-new-open-source-tool-eff-detect-cellular-spying
A laptop with Linux and Kismet can use bluetooth to scan for bluetooth devices by MAC address.
Axon is the largest manufacturer of body cameras.
Public information shows that have a registered MA-L(Mac Address Block Large):
MAC Prefix: 00:25:DF
With a good antenna these can be detected for 1000+ yrds or more with direct line of sight, such as from a drone that's less than 250g (doesn't require FAA registration for recreational use, like fox hunting).
These tools should allow you to steer clear of any civil disturbance and maintain your social credit score.
Federal operations use encrypted packet radios so you can't listen to their com chatter, but local PD often are just using a trunked system without encryption. You can buy a $500 scanner to listen to these, or use 2 cheap($50) software defined radios and some open source software: https://www.youtube.com/watch?v=g9KJrtIO8_4
This should let you hear the local PD/Fire department/Ambulance line (you cannot transmit with the RTL SDRs used in the example, they're not capable of doing so... so you won't risk committing federal crimes). This will allow you to avoid areas of unrest and otherwise be a good citizen.
Stay safe
I also want to throw the Android app BLE Radar into that mix. It gives you a map of Bluetooth LE devices around you. It's available on f droid
Yeah, this isn't any kind of crazy technology there should be a way to do it with any device that has bluetooth and a processor.
All it does is listens for devices, almost like it would when you're trying to pair your earbuds. It just compares the detected MAC addresses vs a list and sends you a notification/alerts you if there is a match.
You can do the same with Wifi (the kids used to call it wardriving, back when modems were a thing and pringles cans had appreciable metal contents) but the people for whom that information is useful will know how to do it on their own.