What does arc mapping help an investigator determine?

Arc mapping is a technique used in fire investigations to analyze electrical arcing patterns that may indicate the source of ignition in a fire. When materials ignite due to electrical causes, the resulting arcs can help investigators pinpoint the location where the fire started. This method involves examining the electrical signatures or patterns left behind by arcing, which can reveal critical information about the area of origin.

By studying the characteristics of the arcs and their distribution, investigators can establish where the fire initiated, making arc mapping a vital tool in determining the area of origin during an investigation. Understanding the significance of these patterns is crucial, as they can provide insight into potential electrical faults or failures that led to the incident. This knowledge can then aid in both legal proceedings and preventing future fires.

The focus of arc mapping on identifying the area of origin distinguishes it from other investigative techniques aimed at addressing different aspects of fire safety, such as chemical leaks or hazardous materials, which are outside its scope.