I was responding to the idea that it is obvious who is at fault, when in fact the bicyclist is usually blamed. (Yes, my insinuation is that the bicyclist is not usually at fault.)

As for "police routinely pull video ... to establish fault" -- this is just one example, but recently in DC there was a bike-and-car crash in which a surveillance video proved the cyclist was not at fault, but the police refused to even look at it: http://greatergreaterwashington.org/post/19284/it-must-have-...