What is the point of origin (POO) in a fire investigation?

The point of origin (POO) in a fire investigation is defined as either a general area or an exact point where the fire cause is associated. Understanding POO is essential for determining how the fire started and identifying potential causes. This aspect is crucial because investigators often need to look at various possible ignition sources within a fire scene, which can include electrical systems, human actions, or accelerants.

While the point of origin may sometimes align with where an accelerant is found or where the most severe damage occurred, it is not solely defined by those factors. Instead, POO is more broadly focused on the initial tenacity of the fire ignition, making it an integral concept in fire investigation. This broader definition allows investigators to understand the fire's behavior and patterns, ultimately leading to a more thorough investigation.