goal of crime scene investigation
recognize, document, and collect evidence at the scene of a crime
Locard Exchange Principle
Whenever two objects come into contact with one another, there is exchange of materials between them.
Intensity, duration, and nature of materials determine the ex...
Chapter 2: Crime
Scene
Investigation
goal of crime scene investigation
recognize, document, and collect evidence at the
scene of a crime
Locard Exchange Principle
Whenever two objects come into contact with one
another, there is exchange of materials between
them.
Intensity, duration, and nature of materials
determine the extent of transfer.
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Brainpower
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Direct evidence
eyewitness accounts, videos, confessions (first
hand observations)
Circumstantial evidence
(indirect evidence) evidence used to imply a fact
but not prove it directly
Types of circumstantial evidence
- physical
- biological
- trace
Physical evidence
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