FRN 100 Blood Angle Calculation-1 - Blood Angle Calculation: 90 ... - Free Printable

- The image displays a diagram titled "Blood Angle Calculation" which illustrates the relationship between the angle of impact and the shape of bloodstains.
- It is divided into four sections, each labeled with a specific angle: 90 degrees, 70 degrees, 30 degrees, and 40 degrees.
- Each section contains red stains that visually represent how blood spatter changes shape as the impact angle decreases from perpendicular (90 degrees) to more acute angles.
- The stains at 90 degrees are nearly circular, while those at lower angles (30, 40, 70 degrees) become increasingly elongated and teardrop-shaped, with tails indicating the direction of travel.
- This visual guide is used in forensic science to estimate the angle at which blood struck a surface, which can help reconstruct the events of a crime scene.