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Doppler Radar Used By Police To Determine Home Occupancy
schwit1 sends an article by Orin Kerr about a court case where a judge has had to weigh Fourth Amendment protections against law enforcement's ability to use a Doppler radar device to tell whether people are present within a home. Kerr writes:
If the government has the burden of proving reasonable suspicion, should the court treat the absence of information in the record on this point as not changing its otherwise-reached view that there is reasonable suspicion (as it does), or should that be treated as a potentially serious deficiency in getting to reasonable suspicion that the government has to overcome?
I’m not sure of the answer. We don’t normally encounter this question because we normally understand the uses and limits of investigatory tools. If the officer looked through the window and didn’t see any other people, for example, we could intuitively factor that into the reasonable suspicion inquiry without having to think about burdens of proof. I’m less sure what we’re supposed to do when the government use a suspicion-testing technological device with unknown capabilities."
The judge in the court case wrote, "New technologies bring with them not only new opportunities for law enforcement to catch criminals but also new risks for abuse and new ways to invade constitutional rights (PDF). ... Unlawful searches can give rise not only to civil claims but may require the suppression of evidence in criminal proceedings. We have little doubt that the radar device deployed here will soon generate many questions for this court and others along both of these axes."
Fuck the police