Blood Spatter

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9 Shape & Size of <strong>Blood</strong>spot • Depends mostly on nature of target surface – texture (rough or smooth) – porous or non porous • Size is related to distance fallen, provided: – standard 50 ul drop of blood • There is little change in spot diameter beyond a fall distance of 1.2 m or 7 ft.
10 Height Fallen Single drops of blood falling from fingertip onto smooth cardboard from various heights. No change in diameter beyond 7 ft. Adapted from Introduction to Forensic Sciences, W. Eckert, CRC, 1997
Page 1 and 2: Unit 5
Page 3 and 4: 2 • Physical properties - viscosi
Page 5: 4 Dripping Blood Blood trickles dow
Page 9 and 10: Categories of Blood Stain Analysis
Page 11 and 12: 68 Transfer Patterns • Wet, blood
Page 13 and 14: Transfer from hair (hair-swipe) 2 7
Page 15 and 16: PROJECTED BLOODSTAINS • Projected
Page 17 and 18: 50 Arterial Spurt Pattern • Blood
Page 19 and 20: 52 Neck incisions (scene)
Page 21 and 22: This category can be further subdiv
Page 23 and 24: This category can be further subdiv
Page 25 and 26: High Velocity: Gun
Page 27 and 28: 22 Low Velocity Blood Spatter • B
Page 29 and 30: 13 0.5 1 2 3 Single drop of blood f
Page 31 and 32: David Sadler: 15 Wave Cast-off . Ta
Page 33 and 34: 17 5 ml blood squirted from a syrin
Page 35 and 36: 19 Tracing Origin of Bloodspots •
Page 37 and 38: 23 Cast-off from Weapon • First b
Page 39 and 40: 25 ceiling Cast-off from Weapon
Page 41 and 42: 27 Cast-off Pattern (1/2)
Page 43 and 44: 29 Cast off Pattern (2/2) ? Sequenc
Page 45 and 46: 31 Three overhead swings with hatch
Page 47 and 48: 33 Cast-off & medium velocity spatt
Page 49 and 50: 35 Cast-off Pattern from Hand
Page 51 and 52: 37 . . . . . . Drip Pattern • Fre
Page 53 and 54: Blood dripping into itself from hei
Page 55 and 56: 41 • Volume > 1 ml Splash Pattern
Page 57 and 58:
5 ml blood squirted from a syringe
Page 59 and 60:
45 Splash onto vertical surface 10
Page 61 and 62:
47 Stamping in blood Close-up of he
Page 63 and 64:
49 Blood pool (10 drops) after stam
Page 65 and 66:
51 Small arterial spurt spatter bro
Page 67 and 68:
53 Neck incisions ‘Hesitation’
Page 69 and 70:
55 Medium velocity blood spatter. P
Page 71 and 72:
Blood flicked between middle finger
Page 73 and 74:
Gunshot: back& forward spatter Bloo
Page 75 and 76:
61 Back spatter on steadying hand
Page 77 and 78:
63 blood soaked target Forward spat
Page 79 and 80:
65 Forward spatter (closer view)
Page 81 and 82:
67 Wipe Patterns • Object moves t
Page 83 and 84:
Transfer from hair (hair-swipe) 1 6
Page 85 and 86:
71 Flow Patterns • Blood flows ho
Page 87 and 88:
73 Trapped!
Page 89 and 90:
75 Stabbing 2
Page 91 and 92:
77 Pattern on shirt
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Blood Spatter

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