They had a quick look in the general direction of the cliffs notes.

Can’t make this shit up …

https://xcancel.com/MabreyTed/status/2028678131012562955

Dune

You do in Germany, except during events/gatherings/marches.

There are a few BLE Radar/Scanner Apps Like this. https://f-droid.org/packages/f.cking.software

You just need to know the Mac address range of the manufacturer and can get notified if body cams, smart glasses or anything else using Bluetooth is in the vicinity