what cameras were those people using to capture unruly passengers trying to make accusations? Something with wifi and or wireless would be a good idea, like the one in the link?
I got the android free app "background video recorder" going now on a cheap android device for internal ($80 dash cam for exterior). Bonus is since it stores 1-2 hours per 1 GB (low video setting + audio), I will have many hours I can go back with. Of course the internal video is so bad at night you can only see it when people first get in with cabin lights, but it's "hidden in plain view" and records audio, which appears legal in my one-party consent state.
I'd shy away from that one. The lack of specs is a red flag. What sensor does it have? What type of lens? How much heat can it handle?
I'm happy with my Lukas 7950 https://www.amazon.com/dp/B00UYHP1SK/?tag=ubne0c-20 But if I was buying again, I'd give strong consideration to the Thinkware F770 https://www.amazon.com/dp/B01M216OYH/?tag=ubne0c-20
Also worth considering is the Vantrue N2 Pro https://www.amazon.com/dp/B0742J69SQ/?tag=ubne0c-20
What do you think of the up coming Acer Vision 360, it has LTE connectivity: