FSB 09 Blood spatter worksheets [PDF File, 263.2 KB] - Free Printable

- Measure the distance from each bloodstain to the Area of Convergence (AOC) on the wall using the provided scale (1 cm = 20 cm). Record these distances.
- Measure the width and length of each individual bloodstain to determine its elliptical shape.
- Calculate the angle of impact for each stain using the formula: Angle of Impact = arcsin(width / length).
- Use trigonometry (tangent function) with the calculated angle of impact and the measured distance from the AOC to determine the height above the floor where each blood droplet originated.
- Plot the calculated heights and distances to reconstruct the position of the victim relative to the wall, identifying whether they were standing, sitting, or lying down at the time of injury.