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10 Cards in this Set
- Front
- Back
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The shape of individual spatters within a distribution pattern will depend on what things? |
Flight path Texture of target surface Angle at which the drop is being struck |
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Point of Convergence |
The common point, on a two dimensional surface, over which the directionality of several blood drops can be retraced. |
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Point of origin |
The common point in three dimensional space to which the trajectories of several blood drops can be retraced. |
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Documentation in 3D reconstruction |
Photograph!!! Label stains Draw level lines under stains Calculate angle of impact for each stain Photograph individual stains with scale and markerDraw level lines under stainsCalculate angle of impact for each stainAnchor string behind stains and place over the elongated portion through point of Convergence. Find and label point of ConvergencePhotograph markerDraw level lines under stainsCalculate angle of impact for each stainAnchor string behind stains and place over the elongated portion through point of Convergence. Find and label point of ConvergencePhotograph Draw level lines under stainsCalculate angle of impact for each stainAnchor string behind stains and place over the elongated portion through point of Convergence. Find and label point of ConvergencePhotograph Anchor string behind stains and place over the elongated portion through point of Convergence. Find and label point of Convergence Photograph |
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Creating 3D reconstruction |
Calculate angle of impact for each stain Tape piece of string to head of stain Use protractor to place string at angle of impact, pulling string until it hits next permanent object. |
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Angle of impact formula |
Sin-1(width/length) |
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Point of Origin formula |
(tan(AOI)) x POC |
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Chart for 3D construction |
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What information is important to note about blood stained clothing? |
What does it look like? Brand of clothing? Type of material made from? Texture Size and color |
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Photographing the clothing |
overall body shot Midranges of body Close up of bloodstains and injuries Close up with scale Close up with scale and label |
