Units 5 & 6 Blood Spatter Analysis 2025

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What is a walking drip blood spatter pattern?

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A walking drip blood spatter pattern is created when blood drips from a moving person, typically leaving a series of drops that indicate the path of movement.

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What is arterial spurting in blood spatter analysis?

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Arterial spurting is a blood spatter pattern that occurs when blood is expelled from an artery, often resulting in large, spurted drops due to the pressure of the blood flow.

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What can be determined from blood spatter analysis?

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Blood spatter analysis can determine the manner of death, velocity of the blood, and area of origin, but not the exact weapon used.

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How can the origin of blood be identified in a spatter pattern?

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The origin of blood can be identified by analyzing the shape and direction of the blood droplets, often indicated by the point where the blood appears to converge.

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What is the purpose of the Precipitin Test in blood analysis?

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The Precipitin Test is used to determine whether a bloodstain is of human or animal origin by detecting specific proteins.

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What is the difference between low velocity and medium velocity blood spatter?

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Low velocity spatter results from a force of 5 feet per second or less, creating larger droplets, while medium velocity spatter results from a force of 5 to 25 feet per second, producing smaller droplets.

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What does cast-off blood spatter indicate?

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Cast-off blood spatter indicates that blood was flung from a moving object, such as a weapon, and can help determine the number of blows or swings.

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What is the significance of blood droplet shape in spatter analysis?

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The shape of blood droplets can indicate the angle of impact and the direction from which the blood traveled.

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What is the Kastle-Meyer Color Test used for?

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The Kastle-Meyer Color Test is a presumptive test for the presence of blood, indicating whether a stain may be blood based on a color change.

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What does the term 'area of origin' refer to in blood spatter analysis?

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The area of origin refers to the three-dimensional location from which the blood originated, determined by the angles and patterns of the blood droplets.