This was a fun watch. Very interesting that so much police gear, from bodycams to tasers, are actually bluetooth beacons.
I liked the suggested applications of this knowledge. You could make a device which detects if cops are around and, say, automatically self-destruct your computer. Alternatively, you could use it to verify the presence of a body cam or automatically determine if you're near a known "bad apple" officer.
Also heartened to see that, despite the subject matter, the presentation was pretty much apolitical.
(Edit: Oh hey OP, are you the speaker? Super well done!)