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Cause of Death: Wounds

Cause of Death: Wounds. “Bodies of Evidence” Unit Notes #2. During the External Exam . Make observations of the body Make observations of wounds Collect trace evidence. During the Internal Exam. Collect trace evidence Calculate the trajectory the wound Make casts (models) of weapons.

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Cause of Death: Wounds

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  1. Cause of Death: Wounds “Bodies of Evidence” Unit Notes #2

  2. During the External Exam • Make observations of the body • Make observations of wounds • Collect trace evidence

  3. During the Internal Exam • Collect trace evidence • Calculate the trajectory the wound • Make casts (models) of weapons

  4. Asphyxia • Asphyxia = death from lack of oxygen (smothering) • Indicators: • Blood at nose, mouth • Bloodshot eyes • Purple skin • Fibers in mouth or nose • As evidence: • Compare fibers • Collect skin cells/DNA

  5. Strangulation • Strangulation = death from compression of the neck (prevents breathing) • Indicators: • Blood at nose, mouth • Bloodshot eyes • Purple skin • Bruising at neck • As evidence: • Ligature strangulation – collect fibers • Manual strangulation – collect skin cells/DNA

  6. Drowning • Drowning = death by submersion in water • Indicators: • Bloodshot eyes • Purple skin • Water in mouth, throat, lungs • As evidence: • Can match water to a location

  7. Blunt Force Trauma • Blunt force trauma = death by sudden impact • Indicators: • Bruises and bleeding • Depressions or swollen areas • As evidence: • Match cast to weapon • Match trace evidence to weapon

  8. Close-Range Gunshot Wound • Close-range = shot from within 8 inches • Indicators: • Ragged or star-shaped wound • Stippling (powder burns) • Gunshot residue • As evidence • Bullet striations • Trace evidence (fibers or DNA) • Calculate trajectory

  9. Long-Range Gunshot Wound • Long-range = shot from more than 8 inches • Indicators: • Neat, round entry hole • No stippling • No gunshot residue • As evidence: • Bullet striations • Trace evidence (fibers or DNA) • Calculate trajectory

  10. Stab Wound • Stabbing = Attack with a sharp blade or pointed object • Indicators: • Round or slit-shaped wounds • Neater wounds indicate a sharper weapon • Bruises from hilt • As evidence: • Match cast to weapon • Calculate trajectory

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