Page 25 - Stained With Suspicion Blood Detection

Pre-Lab

Questions

1. What are the two major components to 5. How do investigators find bloodstains that
blood? are not immediately visible under normal
.............................................................................. lighting?
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2. What test did forensic scientists use to link
blood to an individual until the 1990’s 6. Why are presumptive tests performed before
.............................................................................. confirmatory tests?
.............................................................................. ..............................................................................
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3. What test is now used extensively to link
blood to an individual? 7. If a presumptive test has a positive result, can
.............................................................................. investigators guarantee that blood is present?
.............................................................................. ..............................................................................
..............................................................................

4. Why are blood detection tests still important
in current investigations?
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THE MYSTERY OF LYLE AND LOUISE 25