its the Speed Nazis. Just think they may have these near you! At 6:16 they have a game boy on the table of tuning instruments.
Oh dear, what a complete waste of time and money. Is this Germany? They sound German? We dont have that mobile kind of check but if a cop is determined to have your scoot off you then he can sieze it and have it taken to a police test centre to have its speed or bhp tested. Its rare here but it does happen.
Most cops where i live will not hassle or bother you unless you obviously break laws, say droving on a pavememt or without a helmet or just racing around in town etc. If you ride normally and keep up with traffic then normally you will be left alone.
Most cops dont even bother to pull you now, a quick check on their police computer tells them if you have a valid insurance, license, road tax etc, of you do they stop tailing you and look elsewhere.
I got stopped a months or so ago for riding in a bus lane for like 20yds, cops where great tho and we had a little chat about bikes while he checked i was legal. Soon as it came back i was they let me go, no fine, no hassle, just some friendly advice.
IMO all scoots should be legally capable of 40mph not 30mph as it is here now. 30 is dangerous, 40 is much safer as you can keep up with traffic flows.