I wonder how big a factor defective eyesight is? You do hear of some horrendous incidents (like the one where a driver drove through a red light at a pelican crossing, knocking down several pedestrians, did not stop or even slow down, other people ran into the road (!) to stop him, he only stopped when he got to a traffic queue; he genuinely hadn't seen any of the people or the red light – no sight at all in one eye, very little in the other, now registered blind) but I wonder how big a factor it is compared to just not paying attention (or just not giving a shit)? Good that they can do something so decisive about it on the spot though; and that brumcops at least are actually doing it.