Velocity Bloodstain patterns by

What is impact Spatter

carlyburton — 2022-01-13 16:20:52 UTC

Impact Spatter stains are created when a blood source receives a blow or force that results in random dispersion of blood drops. Impact spatter is divided into 3 categories called Low, Medium, and High velocity

Angle of Impact

carlyburton — 2022-01-13 16:37:08 UTC

The angle of impact is the angle that is formed between the direction of the blood drop and the surface it drops on. The formula is SIN

High Velocity

carlyburton — 2022-01-13 16:47:10 UTC

High Velocity comes from a force of 100/sec and greater. The stain size would 1 mm or smaller. Also has a "mist" like appearance.

High Velocity can come from a gunshot.

The direction of this stain looks like its going away from the center of impact.

Medium Velocity

carlyburton — 2022-01-13 16:50:00 UTC

Medium Velocity comes from a force of 5 to 25 feet/sec. The stain size is 1 to 4 mm.

The direction of this impact looks like forward spatter.

Low Velocity

carlyburton — 2022-01-13 16:54:18 UTC

Low Velocity comes from a gravitational pull from up to 5 feet.

The stains are pretty larger being 4 mm or greater.

The direction of this blood stain is going up at and angle so it would be forward spatter