Mechanical Injury Primer cup Cartridge Anvi case一 Powder Top view of primer Flash hole Anvil Primer Flash mer cup Prime Cross-section of primer Page 11
Page 11 Mechanical Injury
Using high-speed videography to observe the firing Page 12
Page 12 A–C. Small gas cloud emerges from barrel followed by bullet and larger cloud of gas (.38 Special Colt revolver). Using high-speed videography to observe the firing
1. Classification of bullet wound (A) According to the type of gun rifle bullet wound Lands musket bullet wound Grooves Page 13
Page 13 1. Classification of bullet wound （A）According to the type of gun rifle bullet wound musket bullet wound
(B) the range from the muzzle to target contact wounds near-contact wounds ntermediate-range wounds distant gunshot wounds Page 14
Page 14 （B）the range from the muzzle to target contact wounds near-contact wounds intermediate-range wounds distant gunshot wounds
(C) According to perforating or penetrating 1. perforating bullet wound 2. penetrating blind track bullet wound 3. circumferential bullet wound 4.deflected bullet wound 5.grazing bullet wound 6. ricochet bullet wound Page 15
Page 15 1.perforating bullet wound 2.penetrating, blind track bullet wound 3. circumferential bullet wound 4.deflected bullet wound 5.grazing bullet wound 6.ricochet bullet wound （C）According to perforating or penetrating