Blood Spatter

Open Ended

Explain how bloodstain pattern analysis can assist forensic experts in reconstructing a crime scene.

Multiple Choice

Which of the following can an investigator learn from the analysis of a blood spatter?

• Type and velocity of weapon

• Number of blows

• Handedness of assailant

• All of the above

Multiple Choice

Which type of blood spatter is made by gravity only and results in large, round drops?

• Passive spatter

• Projected spatter

• Transfer spatter

• Satellite spatter

Open Ended

Compare and contrast passive, projected, and transfer blood spatters in terms of their formation and appearance.

Multiple Choice

Which of the following statements best explains why blood stains are round and symmetrical when blood droplets hit a surface at a 90° angle?

• The force spreads out evenly and the drop falls straight down.

• The blood is moving at a high velocity.

• The surface is rough and absorbs the blood.

• The blood is mixed with other fluids.

Multiple Select

Which of the following are characteristics of blood stains on rough surfaces?

• Edges are well-defined and smooth

• Stains are irregular and unpredictable

• More spines and satellite stains are produced

• Stains are uniform and circular

Open Ended

How do surface texture and impact force together influence the appearance of blood spatter patterns at a crime scene?

Open Ended

What is the main difference between cast off and blow back blood spatter?