Which of the following describes a necessary action after a crash scene investigation?

Clearing the scene and restoring normal traffic flow is a crucial step after a crash scene investigation. This action not only ensures the safety of everyone involved but also helps to minimize the traffic disruption that often follows an accident. Once the investigation has been completed and all necessary evidence has been gathered, including witness statements and vehicle inspections, emergency responders and law enforcement can begin the process of clearing debris and re-opening the affected roadways. This helps prevent secondary accidents that can occur due to traffic congestion and keeps all road users safe.

In contrast, while filing a report is important, it is not always necessary to do so immediately at the scene, as officers may need time to compile their findings. Vehicles may also be cleared before authorities arrive if it is safe to do so and does not interfere with the integrity of the investigation. Lastly, taking photographs after the clearance of the scene is not ideal as it may result in the loss of critical evidence crucial for understanding the dynamics of the crash. Therefore, ensuring the scene is cleared and normal traffic flow is restored reflects the appropriate sequence of actions following a crash investigation.