What type of blood spatter is caused by high velocity impact, such as a gunshot?

The fine-mist spatter pattern is associated with high-velocity impact events, such as gunshots. This type of spatter occurs when blood is subjected to extreme force and velocity, resulting in very small droplets that can spread widely in a fine mist. The high kinetic energy from the impact causes the blood to break apart into tiny particles, allowing for a greater dispersion over a larger area.

In contrast, medium-velocity spatter typically results from blunt force trauma, which creates larger droplets than those seen in fine-mist patterns. Low-velocity spatter is characterized by larger drops and usually originates from a source with less force, such as blood dripping from a height. A transfer pattern results from the contact of a blood-stained object with a surface but does not represent the dispersal caused by high-velocity impacts. Thus, fine-mist spatter is the defining feature of high-velocity bloodshed scenarios like gunshot wounds.