Done and focussed on two things. The abyssal state of country roads and car drivers and their distraction with the mobile phone. I remember being told in the late 80's that Dupont in America had a company policy that when you got into a car you turned your phone off. The rationale apparently was, when you got into the vehicle you were there to drive - full stop.
IMHO, if a car driver is caught using his / her phone whilst driving, the police officer should remove the sim card and take it to the station where it is held for a fortnight. The phone can still make emergency calls but the turd putting our lives at risk is greatly inconvenienced (but not quite as much as us had we been run into by an inattentive car driver on the phone).