When they start riding these:
Our brilliant chief of police was looking into both these and segways to improve visibility and all kinds of other crap.
Then we reminded the genius he had a rather large force of bike certified officers. We also reminded him that bikes cost 1/5 the money fully equipped, can go just about anywhere someone on foot can go, don't run on batteries, and only require a minimum maintenance requiring a real technician. A tech which our department has in house, and is working on training up a second. Also, it only takes 40 hours to train a bike officer. Who knows what kind of goofy training one of these things would require.. and chances are there are no certified instructors in Texas.
OK.. End rant