MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY MAURO FERMARIELLO / SCIENCE PHOTO LIBRARY
Stab wounds on bone. Piece of bone from a murder victim being examined with a light microscope. The gouge marks (one at upper right, a longer one at lower left) were caused by the knife that was used to stab the victim. Careful forensic examination can confirm this by matching marks on the bone to unique marks on the knife. This links the murder weapon to the victim, and can help to convict the murderer.
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