CFPS - Certified Fire Protection Specialist Fire Investigation Principles Questions and Answers Flashcards
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Read the first 6 CFPS - Certified Fire Protection Specialist Fire Investigation Principles Questions and Answers flashcards as text
The chain of custody in a fire investigation is critical because it:
Answer: Maintains the legal integrity of physical evidence from collection through court presentation
An unbroken chain of custody documents every person who handled evidence and every transfer, ensuring that evidence has not been tampered with and is admissible in legal proceedings.
When investigators find multiple separate and distinct areas of fire origin at a scene, this finding most strongly suggests:
Answer: Possible incendiary origin requiring further investigation
Multiple unconnected areas of origin that cannot be explained by normal fire spread are a significant indicator of possible incendiary activity and must be fully investigated.
Which professional certification, administered by the International Association of Arson Investigators (IAAI), demonstrates competency in fire investigation?
Answer: CFI (Certified Fire Investigator)
The IAAI Certified Fire Investigator (CFI) designation is the primary professional certification for fire investigators and requires demonstrated competency in origin and cause methodology.
In a fire investigation, 'cause' of fire refers to:
Answer: The combination of the ignition source, the first fuel ignited, and the circumstances that brought them together
NFPA 921 defines fire cause as the circumstances, conditions, or agencies that brought the ignition source and fuel together in the manner that resulted in the fire.
Alligatoring — a burn pattern characterized by large, shiny, flat blisters on charred wood — historically suggested rapid, intense fire but current NFPA 921 guidance states that:
Answer: Alligatoring alone cannot reliably distinguish fast from slow fires or indicate accelerant use
NFPA 921 reflects current research showing that alligatoring patterns are influenced by many variables and cannot by themselves reliably indicate rapid fire growth or accelerant use.
During a fire investigation, an investigator interviews witnesses primarily to:
Answer: Gather information about pre-fire conditions, observations, and the fire's development to guide the physical investigation
Witness interviews provide information about what was present before the fire, how and where the fire was observed to start, and how it developed — all critical data for guiding the physical scene examination.