Transfer Stains
Transfer stains occur when a bloody object comes in contact with another object and blood is transferred from one object to the other through adhesion.
Swipes
A swipe pattern occurs when blood is transferred onto a surface from a moving object that is already bloodstained.
Wipes
A wipe pattern occurs when an object moves through a bloodstain that already exists on another surface.
Saturation Stain
This is a pattern that is created when blood accumulates into an absorbent material.
Fly Spots
Fly spots are stains that occur as a result of fly activity that may appear to be spatter. Flies can excrete, regurgitate and transfer blood onto items within a scene, causing these stains.