Page 10 - A Burning Question Fire Debris
P. 10
Post-Lab
Solutions
1. Based upon your experimental results, are that the fire within the vehicle was the result
colorimetric tubes a sufficient means of of arson, as the ignitable liquid detected may
identifying ignitable liquid residue in fire have been present in the vehicle before the
debris samples? fire. However, as the burned vehicle ran on
Yes diesel fuel and the ignitable liquid identified
was gasoline, the fire itself can be classified as
suspicious and arson is likely.
2. Was an ignitable liquid identified in the fire
debris sample from the crime scene? If so,
what ignitable liquid was identified? 4. Based upon your knowledge of the crime(s)
and your examination of the evidence
Yes, gasoline
presented, what is your hypothesis about the
events surrounding the fire?
3. Based upon your examination of the evidence Answers will vary. As examination of the fire
presented, can it be concluded that the fire debris should conclude that the ignitable liquid
from the ve hicle crash was the result of gasoline is present, students should suspect
arson? Why or why not? that the fire was intentionally set after the
No, answers will vary, but should note that the crash, likely to eliminate witnesses and/or
evidence presented can not prove decisively evidence.
10 THE MYSTERY OF LYLE AND LOUISE
