well, fine. ive no issue with folk trying to make a difference, but could you turn your efforts to preventing some serious crime, rather than pursuing 3 mph phone texters... odds are they will complete their journey without issue. odds are, they wont use the phone when sat on the A4 at 73MPH. Like you, i lost someone to a road incident, im sorry too for your loss, but these 3mph texters really are not worth your time.
police vehicles exempt from declarations of MOT. This means that they are not required to take their vehicle to a car garage every year for a thorough examination.
bit of a kiddy fiddler, probably got ice creams and sweets in the boot that he didnt want smashing