What is indicated by the term "ignition sequence" in the context of fire cause determination?

The term "ignition sequence" refers to the specific progression of events that occurred leading up to the ignition of a fire. In fire cause determination, understanding the ignition sequence is critical because it helps investigators piece together how a fire started and the conditions that contributed to its ignition. This can include the identification of potential ignition sources, the materials involved, and any actions or events that may have triggered the fire.

This contextual understanding allows investigators to establish a timeline or narrative of what happened before the fire ignited, which is essential for accurately determining the fire's cause and potentially identifying any negligence or criminal activity. Each step in the ignition sequence can provide crucial insights into the nature of the fire, guiding further investigation and analysis.