The Role of Bloodstain Pattern Analysis (BPA) in Crime Scene Reconstruction

This is the authors' abstract. We don't add key points for this paper.

Bloodstain Pattern Analysis (BPA) is one of the most valuable forensic techniques used to reconstruct violent crime scenes. It enables investigators to interpret the direction, velocity, angle of impact, and mechanism responsible for bloodshed, thereby helping establish the sequence of events during crimes involving homicide, assault, and accidental death. Despite its widespread application, BPA has faced increasing scientific scrutiny regarding reliability, reproducibility, and analyst bias. This paper reviews the role of BPA in crime scene reconstruction, examines current scientific evidence, discusses its strengths and limitations, and highlights recent technological advancements including three-dimensional reconstruction and artificial intelligence. Findings indicate that BPA is an important component of crime scene investigation but should always be interpreted alongside DNA evidence, forensic pathology, and other physical evidence rather than as standalone proof.