What are the four methods for recording evidence at a crash scene?

The correct answer identifies the appropriate and commonly used methods for recording evidence at a crash scene: photography, measurements and diagrams, statements, and MRCS reports.

Photography is essential because it provides visual documentation of the scene, showing the position of vehicles, damage, and environmental factors that may have contributed to the crash. It captures details that might be overlooked or forgotten later.

Measurements and diagrams are critical for accurately representing the scene's layout. By measuring distances between significant points, investigators can create diagrams that illustrate the positions of vehicles before and after the collision, which can be vital for reconstructing the event accurately.

Statements from witnesses are crucial as they offer different perspectives on the incident. These testimonies can provide context and help corroborate physical evidence.

MRCS reports, which refer to reports generated by automated systems used for documenting crash data, can provide standardized information and analysis pertinent to the incident.

The other options include some methods that are less reliable for criminal investigations or do not fit the context of documenting a crash scene as accurately as the methods listed in the correct answer. For example, while sketches and personal statements can be useful, they might not provide the same level of detail and accuracy as measured diagrams and official reports.