T & P
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You’re still widely speculating and ignoring some very plausible facts. The pedestrian could have been hit by a joyrider in a stolen car who of course will always ignore the motoring laws altogether regardless of how strict they are and how strictly they are enforced. There could have beeo other circumstances that would have exonerated the driver of any wrongdoing, or failed to prevent the fatality if the driver had been travelling below 20 mph.There is a direct connection between lax enforcement, and people getting killed. That stands whatever the specifics of this case or others.
Every single day I see people speeding, and in every single one of those cases there is potential for someone to get killed.
I frequently see crashes at a junction a few steps from my front door. In several cases these have involved cars mounting the pavement. And each time I see these I know that someone could easily have been in the wrong place at the wrong time. And when I see that cast iron bollards concreted into the pavement are taken out, maybe you can understand where my imagination goes.
We simply don’t know at this stage, and trying to assert blame at this stage without knowing all the facts seems rather wrong to me. But each to their own.