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What is a bloodstain Pattern?

Updated: 12/20/2022
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15y ago

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A bloodstain pattern is a series of blood drops that have accumilated in a group to form a pattern. From these patterns we can tell what the angle of the weapon used was at, how high the weapon was, how tall the offender was, and some times how man times the weapon was used. An example of a blood stain pattern (BPA) is a cast-off. This occurs when a weapon is used, becomes bloodied and is swung back for a second blow. This would cause the blood from the weapon to fling on a surface e.g wall in a linear fashion showing the degree or angle is which it is being used. Hope this helps :)

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