CFI CFI Investigative Methodology & Crime Scene Analysis 1 — Questions and Answers
Question 1: Locard's Exchange Principle in forensic investigations states that:
- All evidence must be collected within 24 hours of discovery
- Every contact between a perpetrator and a scene results in a trace exchange (Correct answer)
- Witnesses must always be interviewed before evidence collection begins
- Digital evidence takes precedence over all physical evidence
Correct answer: Every contact between a perpetrator and a scene results in a trace exchange
Locard's Exchange Principle holds that any contact between individuals or between a person and an environment results in an exchange of trace materials.
Question 2: Which investigative approach involves working from established general principles or known facts to reach specific conclusions about unknowns?
- Inductive reasoning
- Deductive reasoning (Correct answer)
- Abductive reasoning
- Systematic profiling
Correct answer: Deductive reasoning
Deductive reasoning starts from established general principles or known facts to reach specific conclusions about unknowns in a case.
Question 3: In a forensic investigation, the 'chain of custody' refers to:
- The hierarchy of investigators assigned to a case
- The documented chronological record of evidence handling from collection to presentation (Correct answer)
- The order in which witnesses must be interviewed
- The sequence in which crime scene photographs are taken
Correct answer: The documented chronological record of evidence handling from collection to presentation
Chain of custody documents every person who handled evidence to ensure its integrity and admissibility in legal proceedings.
Question 4: What is the primary purpose of a 'victimology' assessment in a forensic investigation?
- To assign moral blame or responsibility to the victim
- To understand the victim's lifestyle, risk factors, and relationships to identify potential suspects (Correct answer)
- To determine appropriate insurance compensation amounts
- To satisfy mandatory legal reporting requirements
Correct answer: To understand the victim's lifestyle, risk factors, and relationships to identify potential suspects
Victimology helps investigators understand victim vulnerability and risk factors that may link the victim to suspects or reveal motive.
Question 5: The 'fraud triangle' model identifies which three elements as necessary conditions for fraud to occur?
- Opportunity, motivation (pressure), and rationalization (Correct answer)
- Intent, capability, and available resources
- Greed, access, and planning
- Planning, execution, and active concealment
Correct answer: Opportunity, motivation (pressure), and rationalization
The fraud triangle identifies opportunity, motivation (financial pressure), and rationalization as the three factors that enable fraud.
Question 6: In conducting a threat assessment, which factor is considered most empirically predictive of future violence?
- Demographic characteristics of the individual
- History of prior violent behavior (Correct answer)
- Current socioeconomic status
- Level of formal educational attainment
Correct answer: History of prior violent behavior
Prior violent behavior is the strongest empirically supported predictor of future violence in threat assessment research literature.
CFI CFI Investigative Methodology & Crime Scene Analysis 1
Locard's Exchange Principle in forensic investigations states that: