These are tiny, mist-like stains, usually less than 1 mm. They are most commonly associated with gunshot wounds or high-speed machinery. The explosive force atomizes the blood. If a worksheet shows a photo of a fine, misty pattern on a wall, the answer is almost certainly high-velocity impact spatter.
While I cannot reproduce the copyrighted worksheet verbatim, here are the types of questions found on FSB09 and the logic behind the correct answers. These are tiny, mist-like stains, usually less than 1 mm
This is the advanced question on FSB09. You calculate the height of the blood source using the tangent formula. If a worksheet shows a photo of a
For example, if a stain is 11mm wide and 40.5mm long, the calculation is . Taking the inverse sine ( arcsinarc sine ) gives an angle of approximately . 3. Calculating the Area of Origin (H) You calculate the height of the blood source