But, we're getting off topic here and I think the "Drone" deal is gonna try the farthest reaches of the Court's System eventually.
Personally, while I wouldn't advise anyone directly, I'll watch the skies, and because I own the airspace above my property, I will shoot down any of those little battery powered helicopters I see over my property. And then dare the owner(s) to come get it.
And that's what the average local PD drone is/will be.
I can already buy one that I can fly with an iPad or iPhone for a little less than $300 from most hobby stores that sell R/C stuff. (It's been on the market for two years) It will fly for about a half hour and it can be controlled totally remotely, out of line of sight, using two video cameras for control input. Make one a little more efficient and it can carry GPS navigation and homing equipment . . All of which doesn't weigh any more than a very small cell phone . .
Total package cost? About $600 . . . And most of the software is in your phone or iPad controlling device. "There's an APP for that!"
And going back to those "Jet R/C's" and their guidance systems. According to one of my R/C buddies, they now have a "Homing device and software" you can put in your R/C plane that is programmed to fly back to a specific GPS location if it's controlling radio signals are lost.
Now what it does if there's nobody there to land it is up for discussion . .
Hmmmm . . . ?