Which indicator typically suggests multiple points of origin in a fire?

The presence of accelerants is a strong indicator of multiple points of origin in a fire because accelerants are substances that can significantly speed up the combustion process. When these materials are used, they may allow a fire to ignite in several locations simultaneously or travel quickly across a landscape, leading investigators to conclude that there are multiple origins rather than a single source.

When analyzing fire scenes, investigators look for the extent and uniformity of burn patterns. If a fire is spreading rapidly with characteristics often associated with accelerants, this suggests intentional ignition points, which typically manifest as multiple areas of origin. The use of accelerants not only increases the fire's intensity but also complicates the typical patterns found in natural fires, making their detection crucial in arson investigations.

This understanding helps fire investigators differentiate between accidental fires, which may show a single point of origin and natural causes, and those with suspicious multiple points indicative of malicious intent.