I would really like to see a practical open source implementation of this so people can start looking for ways to defeat it. Otherwise you know the police are going to abuse this.
Talking about / showing things as an early "adopter" (ECHELON, Snowden stuff pre-Snowden, etc.) tends to get people angry and you slandered with vitriolic things like "conspiracy theorist" so the juice is not worth the squeeze.
1. it's conspiracy theory
2. it was obvious to everyone
3. forgotten
We need new legislation to ban this, without a law enforcement exemption. I don't have high hopes.
Definitely start with the presumption it is illegal anywhere in the world, even though you might be able to hack around regulations to find loopholes. I think the FCC is focused on broadcast interference, safety requirements, and commercial sales of jamming devices.
Jamming could still be an option. Most devices are required to accept any interference from other lawful devices. So in theory, you could find legal ways of jamming.
https://www.zdnet.com/article/how-to-jam-your-neighbors-wi-f...
You could only legally jam by making transmissions that are actually useful and just happen to also interfere.
IANAL.
There are far more obvious ways to know if someone is home, from thermal sensors, looking in windows and knocking on doors, or park outside and just watch.
Further if the police want to know if you’re home, it’d already game over.
It’s never too early to start thinking of the implications of technology. It’s not inconceivable that in a few years every crooked small town cop will have access to tools straight out of science fiction- tools that started out as innocuous research.
X-Ray vans (2015), https://www.foxnews.com/science/x-ray-vans-security-measure-...
> The Z Backscatter Van (ZBV), manufactured by American Science and Engineering .. can also see through clothing and into some buildings, are raising privacy concerns as well as questions about health risks ... the van -- which looks like a standard delivery van -- takes less than 15 seconds to scan a vehicle; it can be operated remotely from more than 1,500 feet ... vans range in cost from $729,000 to $825,000.
All of these have the disadvantage that the observer can be spotted - there exist numerous articles on how to spot cameras because sketchy AirBnB hosts placed hidden cameras in bedrooms and toilets. A radio-based monitor however doesn't need line of sight - if small enough, it can be hidden just about anywhere where no one looks, like the interior of a rainwater tank, under the bottom of a trash can, in a roof water drain.