I would **hope** ... but not be certain or even particularly confident... that they looked for things like skid marks or something about the bike as well as the surroundings to indicate waht happened.

We had a cyclist found off the road, who died from his injuries without waking up to explain them, but there was a road in bad shape and a ditch involved, at least.

The prevailing attitude of folks is, unfortunately, that it's not worth trying to figure out what happened; it was just "an unfortunate accident." That's the attitude here, even when they *know* who caused it and how (our ringtone-downloading driver). Gosh, too bad it happened... (implication: wasn't anything anybody should have done!)