CFI Study Guide 2026
Everything you need to pass the CFI exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 CFI Exam Format at a Glance
📚 CFI Topics to Study (72)
✍️ Sample CFI Questions & Answers
1. Which of the following best describes the role of fire dynamics in an investigation?
Fire dynamics plays a crucial role in an investigation by aiding in the understanding of how fire spreads and its point of origin. It involves studying the behavior of fire, including heat transfer, flame propagation, and smoke movement, within a given structure. This scientific analysis helps investigators interpret burn patterns and other physical evidence to reconstruct the fire's progression accurately.
2. An investigator is checking a suspect's employment background and learns the suspect was recently terminated. Which aspect of this information is most relevant to the arson investigation?
Recent job loss is relevant because it may establish financial motive, particularly in cases where the suspect owns insured property destroyed by fire.
3. What is the PEACE model of investigative interviewing, and in which country did it originate?
PEACE (Preparation, Engage and Explain, Account, Closure, Evaluate) was developed in England and Wales as an ethical, non-coercive alternative to confession-focused interrogation.
4. An investigator suspects a UPS (uninterruptible power supply) caused a fire. What digital evidence source within the UPS should be examined first?
Many UPS units store internal event logs or fault memory that record overload events, battery failures, and abnormal conditions preceding the fire.
5. How does risk management apply to daily practice in Surveillance Methods & Technology for Certified Fire Investigator professionals?
Effective risk management in Surveillance Methods & Technology requires proactive hazard identification and preventive measures, not just reactive responses. This approach reduces incidents, improves outcomes, and protects both professionals and clients.
6. A fire investigator is testifying and the defense attorney challenges whether the evidence presented is the same item collected at the scene. What documentation best defeats this challenge?
An unbroken chain of custody with documented signatures at every transfer point is the definitive record proving the evidence's identity and integrity.