Blood stain pattern analysis is used in crime scene investigations and forensic science.

Bloodstain patterns found at the crime scene, or on a particular person's clothing, can be used to identify someone.

Blood won't break up unless it's MzE MzEd by force.The force must be able to overcome the surface tension of the blood.

Immediately after separation from the blood source, blood forms a spherical shape.The blood's surface tension causes the spherical shape.

The simplest type of blood spatter analysis is determining spatters from transfers.

Spatters are created when blood is acted upon and travels through the air before landing.

There can be blood on a variety of surfaces.The appearance of spatter is affected by the type of surface that free falling blood strikes.

The majority of the Low Force Impact Spatters are large and circular.

The size of the spatters will not change after approx 4 feet.

The amount of force applied causes the blood to break into smaller size spatters.

The majority of larger drops of blood are broken into smaller spatters.

The term "Velocity" doesn't measure the speed at which the blood is traveling, but rather the amount of force applied to it, to cause it to spatter.

Some high force impact spatter may be directed back toward the gun that fired the shot when a bullet strikes a target.This is called back spatter.

A larger amount of high force impact spatter may be directed in the same direction as the bullet if it exits its target.This is called forward spatter.