This probably would not help in this case, but, the app should have an emergency button that'll call the police and provide vehicle info and driver details with

This probably would not help in this case, but, the app should have an emergency button that'll call the police and provide vehicle info and driver details with a real-time coordinates to them. It really is a no-brainer from tech point view, they have all the data. Or if you want to go even deeper, make drivers install tamper-proof hardware with a big red button. But there a lot of small details and likely regulations in this approach