Scene Reconstruction
Area of Convergence |
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The region in two-dimensional space that is the approximate location where a bloodstain originated from. This area is determined by tracing lines through the long axes of multiple bloodstain spatters and finding where they converge.
Angle of Impact |
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The acute angle that forms between the surface where the blood drop is deposited and the path of the blood drop.
Area of Origin
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The region in three-dimensional space that is the approximate location where a bloodstain originated from. This region is gauged by using the angle of impact and the area of convergence and supported by the string method and laser scanning.
Directionality of Bloodstains
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The consideration of the movement of the source of blood. This can be determined by analyzing the tail of each blood drop in a bloodstain while taking into account other factors such as gravity.
Infrared (IR) Photography
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A technique used to detect blood on substrates that uses infrared frequency light to determine the location of blood on a surface, if any. This method is often used on dark substrates.
The acute angle that forms between the surface where the blood drop is deposited and the path of the blood drop.
The region in two-dimensional space that is the approximate location where the bloodstains originated from. This area is determined by tracing lines through the long axis of multiple bloodstain spatters and looking at where they converge.
A 3D measuring technology that uses lasers as the light source. By detecting the reflection of the laser, visible or invisible to the eye, it is able to accurately measure the distance from the scanner to an object or surface. This information can be then used to create a map of the scene for documentation and analysis.
