Paper details LAB : Blood Spatter – When completed, submit results on the next page. Download this lab and read it.
Blood spatter Lab (1).pdf
This week you will do calculations. Read every page of the lab and then try to carry out the calculations.
Sources needed No specific sources required
Do your best and submit your conclusion about what happened in this case. Using the two main formulas in the lab, calculate the Area of Origin and Area of Convergence for the following case:
You are an Investigator for the State in Corrections. Two men are locked in a cell overnight. In the morning one man is dead and the other man claims he was attacked in the middle of the night by the decease, who was wielding a portion of a “broken-off wooden mop handle. There is one area of impact on the deceased’s head. What do your calculation suggest?
Sin i = Width / Length of blood drop Length of blood drops = 0.877 inch Width of blood drop = 0.5 inches
http:Thvww.rapidtables.com/calc/math/Arcsin_Calculator.htm (Links to an external site.)Links to an external site.
Angle of impact =
TAN i = H/D
i = angle of impact (from above formula) D = distance from blood drops to area of convergence, given below H = unknown distance above target surface
Find Area of Origin H= TAN i * D Angle of impact = i = (from 1st calculation) in degrees
Distance to the Area of Convergence (AOC) = D = 30 inches
H =?
What does the height from the origin of the blood tell us?
LAB : Blood Spatter – When completed, submit results on the next page. Download this lab and read it.
Blood spatter Lab (1).pdf This week you will do calculations. Read every page of the lab and then try to carry out the calculations. Do your best and submit your conclusion about what happened in this case.
Using the two main formulas in the lab, calculate the Area of Origin and Area of Convergence for the following case: