My dash cam has captured two car accidents where you can clearly see the driver is playing with their phone. One where a woman with a baby and a toddler in the car drove at 35mph directly into the back of a work van while wandering between lanes. Another where a guy simply drifted off the road and into a rain ditch at 45mph causing the car to go airborne and do a 360 spin in mid air. I gave the videos to police and the insurance companies. Everyone should be using a dash cam.