Certified Fire Investigator Practice Exam

During an investigation, what would the discovery of an accelerant suggest?

1. An accident has occurred

2. A natural cause of fire

3. Potential criminal activity

4. An improperly extinguished fire

The correct answer is: Potential criminal activity

The discovery of an accelerant during an investigation is a strong indicator of potential criminal activity. Accelerants are substances that are intentionally used to enhance or speed up the combustion process. Their presence can suggest that the fire was deliberately set, which points towards arson or other forms of malicious intent. Investigators examine the characteristics of the accelerant, such as its chemical composition, to gather evidence that may tie a suspect to the act of setting the fire. In investigations, it is critical to differentiate between accidental fires, natural causes, or other scenarios. An accelerant's presence essentially rules out what might be more commonplace occurrences, such as accidents or natural combustion. Recognizing the implications of accelerants helps fire investigators form a clearer picture of the events leading to the fire and supports the legal process should criminal charges be warranted.