I caught the last 20 mins of this yesterday ... basically as the kids flicked channels I noticed a bent bike so started watching. It was interesting how much care they put into reconstructing the scene of the accident, to prove where the crash took place (on or off the carriageway - A38 3 lanes moving 70 mph!!!), between a lorry and cyclist. It included inspecting the bike for mechanical failure, only problem noted was the extremely worn back tyre - but that was discounted as it wasn't wet. And also looking at what clothes he was wearing - reflective jacket and trying to reconstruct his rear light to see if he was visible - though they eventually used CCTV to prove that. Outcome: cyclist lived, although he had to have a kidney transplant, and the lorry driver admitted dangerous driving. But it made me think about what might be taken into consideration in an accident.