Bloodstain Pattern Analysis (BPA) is the study and analysis of bloodstains at a known or suspected crime scene with the purpose of drawing conclusions about the nature, timing and other details of the crime. It is one of the several specialties of forensic science.
The use of bloodstains as evidence is not new. However, since the late 1950s, BPA experts have claimed to be able to use biology, physics (fluid dynamics), and mathematical calculations to reconstruct with accuracy events at a crime scene, and these claims have been accepted by the justice system. For example, the shape of blood droplets might be used to draw conclusions as to how far away the victim was from a gun when he or she was shot.
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September 2020 Online Zoom