Bloodstain Pattern Analysis Terminology

Definition

Directional Angle: The angle (gamma) between the long axis of a spatter stain and a defined reference line on the target.

Bloodstain Example - Directional Angle

Bloodstain Example - Directional Angle

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Description

This shows the directional angle, known as γ (gamma), which is the angle between the plumb line and the major axis of the bloodstain.