Page 28 - Strands of Evidence Hair And Fiber
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9. Microscopically compare the two samples.
Visually determine if the sample collected at Suspect
the cabin is a pottential match to the sample Collections
collected in the truck.
10. Allow another member of your lab group to 1. Select an envelope of evidence obtained from
examine the two samples. one of the suspects, Larry Gretzky or Mitch
Wilson.
11. If both group members agree that the
samples are consistent with one another, 2. Analyze those samples using the previously
record these samples on the possible utilized analytical procedure for those samples
matches sheet. collected at the cabin with the following changes:
12. Check the truck sample back into evidence.
BLUE data collection sheets should be
13. If multiple samples from the truck are utilizedfor suspect samples.
pottential matches, record all samples on the
same line of the sheet. When attempting to identify similar
samples in step six, compare these
samples to both those from the truck and
14. Record your sample’s information on the green
cabin evidence sheet and place the sample those from the cabin.
collected from the cabin into evidence.
15. Perform this process for all samples collected 3. Repeat this procedure until all suspect
at the cabin. evidence has been processed by the class.
28 THE MYSTERY OF LYLE AND LOUISE
