MICROANATOMY

Detailed explanation-1: -Low velocity blood spatter can caused by blood dripping. For example blood dripping from a nose bleed. The force of the blood hitting a surface for low velocity blood spatter is 5 feet per second or less. This causes the blood droplets to be large in diameter (between 4 and 8mm.)

Detailed explanation-2: -Forward spatter from a gunshot wound will typically form smaller droplets spread over a wide area, while impact spatter will form larger drops and be more concentrated in the areas directly adjacent to the action. Left: large volume blood stain.

Detailed explanation-3: -A low-velocity spatter is usually the result of dripping blood. The force of impact is five feet per second or less, and the size of the droplets is somewhere between four and eight millimeters (0.16 to 0.31 inches).

Detailed explanation-4: -“High velocity” A bloodstain pattern resulting from an object impacting a blood source at 100 feet per second or greater. A typical example is spatter resulting from a gunshot. “Medium velocity” A bloodstain pattern resulting from an object impacting a blood source at roughly 25 feet per second.

Detailed explanation-5: -Low Velocity Impact Spatter – Bloodstains resulting from blood moving < 7.5m/s. e.g. free-falling drops, cast-off from weapon. Impact Pattern – Bloodstain pattern created when blood receives a blow or force resulting in the dispersion of smaller drops of blood.