Forensics Science (blood splatter)

There’s 4 main types of blood splatter. Cast off, arterial spurt, passive and transfer. 

To break down each type I’ll start with cast off. 

Cast off is when then weapon (knife, axe, gun, ect) is flung back flinging blood with it. For example, if there’s blood patterns progressively going upward it indicates fast off. 

Passive is when falls by gravity rather then a human force. Normally caused by slow bleeding victims and helps the investigation proceed by locating the body. 

Transfer is when an object comes into contact with blood and then moves sound creating a trail. For example, when someone steps into blood and walks around the scene of the crime they leave a trail. 

And lastly, arterial spurt. Arterial spurt is when a major artery is struck (for example the jugular) causing a fast gush of bleed and leads to a quick but painful death.