BU HI Lecture 1

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Author:
bkkrafft
ID:
22526
Filename:
BU HI Lecture 1
Updated:
2010-06-07 21:19:50
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BU Homicide Investigation
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Description:
Critical Thinking for Homicide Investigators
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  1. What are some hindrances to critical thinking?
    • faulty logic
    • poor perception
    • language
    • unwarrented generalizations
    • bias
    • emotional reasoning
    • misuse of statistics
  2. T or F: Crime Reconstruction is the same as a recreation or reenactment.
    • False!
    • Crime reconstruction is interpreting the events that surround the commission of a crime and should not be confused with a recreation or reenactment.
  3. What are the three types of logical reasoning?
    • Induction
    • Deduction
    • Abduction
  4. T or F: Induction can be conclusive, sound, or cogent.
    False! Induction is not conclusive, but can be sound or cogent.
  5. ________ is the process of reasoning where experience, skill, and observation are applied to the particulars of a case and a conclusion or generalization is drawn.
    Induction
  6. What is deduction?
    The process of reasoning that starts with a generalization or premise and then considers the logical consequences of any particulars that follow.
  7. ________ is the process of cycling through both inductive and deductive reasoning by adding known facts until one is able to reject or retain a hypothesis.
    Abduction
  8. Describe the scientific method as it applies to homicide investigations.
    • 1. State the problem
    • -type of crime committed
    • -legal elements of the crime
    • -rules of admissibility
    • 2. Form a hypothesis
    • -view scene, victim
    • -victimology assessment
    • -initial witnesses to event or discovery of body
    • 3. Collect data
    • -forensic evidence- elimination sample
    • -testimonial evidence- alibis, percipient and other witnesses
    • -hearsay evidence- reputations, associates
    • -record and document all evidence
    • 4. Test hypothesis
    • -forensic tests
    • -objectivity of testimonial evidence
    • -hearsay- reliable? basis of knowledge?
    • -record and document evidence- reliable and verifiable
    • 5. Draw Conclusions- it can be shown to have:
    • -occured in a given manner
    • -likely occured in a given manner
    • -unlikely occured in a given manner
    • -or cannot be shown to have occured in a given manner
    • 6. Modify hypothesis if consistent and retest
    • -seek additional evidence
    • -explore other possibilities
    • -proactive investigation methods
  9. What does MO stand for, and what does it mean?
    Modus Operandi- learned behavior, necessary to commit the crime, serves operational needs
  10. A signature behavior serves __________ and _________ needs.
    psychological and emotional

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