Dexter- Has got his Blood Splatter Analysis done! What About You??…. Yes Guys! This is where blood takes flight and we as forensic scientist need to know the Direction of Flight- i.e The trajectory of a blood drop which can be established by its angle of impact and directionality angle.
Now you need to know the basics in Direction in Blood Splatter. Here are few terminologies:
Draw-Back Effect – Blood in the barrel of a firearm that has been drawn backward into the muzzle.
Drip Pattern — A bloodstain pattern which results from blood dripping into blood.
Expirated Blood – Blood that is blown out of the nose, mouth, or a wound as a result of air pressure and/or air flow which is the propelling force.
Flight Path – The path of the blood drop, as it moves through space, from the impact site to the target.
Flow Pattern – A change in the shape and direction of a bloodstain due to the influence of gravity or movement of the object.
Forward Spatter – Blood which travels in the same direction as the source of energy or force which caused the spatter.
High Velocity Impact Spatter (HVIS) — A bloodstain pattern caused by a high velocity impact /force to a blood source such as that produced by gunshot or high speed machinery.
Courtesy: Joulyn's Blog
