When performing an interior examination of a fire scene, what is done first?

In the context of performing an interior examination of a fire scene, assessing the highest burn areas is crucial because these areas can provide significant insights into the fire's behavior and development. Analyzing these regions helps investigators understand how the fire spread, its origin, and the materials involved. The highest burn areas often indicate where the fire was most intense, which can lead to identifying the ignition source and potential contributing factors.

By focusing on these areas first, investigators can gather vital evidence that may influence the direction of the investigation. This method prioritizes areas that are likely to yield the most pertinent information about the fire's dynamics and characteristics, establishing a foundation for the overall investigation. After assessing the highest burn areas, investigators can then move on to less damaged regions and other aspects of the scene.