@cee-dee wrote:
the most unreliable evidence is that of "eye" witnesses
When my car was hit head-on by a boy-racer who came round a bend out of control on my side of the road, the Police closed the road, took all sorts of measurements and photographs of skid-marks, impact position,etc, worked out the speed before the impact, and so on ... but then said that they couldn't prosecute him because there were no eye witnesses! 
So, what was the point in taking all those measurements and photographs?
