Which principle should guide evidence collection in a fire investigation?

In fire investigations, the principle that should guide evidence collection is that it is easier to disregard unrelated collected items than to leave important items behind. This principle emphasizes the importance of thoroughness and caution in the evidence collection process. During a fire investigation, multiple items may be present, and some may not initially seem relevant. However, every piece of evidence has the potential to provide crucial information about the cause and origin of the fire.

Collecting a broad array of items ensures that important indicators are not overlooked in the moment of investigation. Disregarding evidence that may seem unrelated can lead to the loss of critical insights that could answer key questions about the fire's circumstances. This principle highlights the necessity of a comprehensive approach in collecting evidence, as the context and relationships between items may only become clear after further analysis.

By adhering to this guiding principle, investigators can ensure a robust and thorough collection process, ultimately leading to a more accurate understanding of the fire incident.