Is it my imagination but is it a new thing that police close motorways for many, many hours after an accident? If we have to get to an airport for a flight now, we have to take the motorway journey time, then time for traffic, and finally now, having to take detours along roads we don't know because the motorway is closed because of the accident. The police say it is because they are investigating a crime scene, but I'm sure they didn't do this in the past. I'm sure the police in other countries don't do this. I'm sure that the delays caused by the closures, the drivers rushing to find their way along congested unfamiliar roads trying to make up lost time, will cause more accidents than getting the motorway open quickly. So why do the police do this now? Are they being coerced to do this by government? Is there some evidence that prosecuting motorists for unintended accidents actually reduces accidents? (By the way motorists are the only section of society prosecuted when there is no intention to commit a crime. In every other court case, the prosecution must prove intent to commit a crime or they can't be prosecuted.)