Blood Forensics

The spatter pattern that is created when a blood covered instrument is raised or swung backwards.

• Smears

• Cast Off

• Arterial Gushes

• Lines of Convergence

True or False: A blood drop that falls at a 90 degree angle, makes an elongated drop mark.

• True

• False

Proteins on the surface of Red Blood Cells that determine the blood type of an individual.

• Plasma

• Platelets

• Antigens

• Antibodies

The common ways that forensic scientists can determine if blood is present at a crime scene. Check all that apply.

• Kastle-Meyer Test

• Hemoglobin Test

• Luminol Test

• The Karl Landsteiner Test

What is Luminol?

• Chemical that shows blue glow in the presence of blood.

• Test that uses phenolphthalein that turns bright pink in the presence of blood.

• Easy test strips that test for the presence of hemoglobin.

What indicator is used in the Kastle-Meyer test?

• Luminol

• Phenolphthalein

• Hemastix

• HermaTrace

Which of the following is NOT true concerning blood typing?

• Blood typing is faster and less expensive that DNA testing.

• Blood typing is a source of individual evidence.

• Blood typing can eliminate suspects.

• Blood typing can be used in forensics as well as in determining parentage.

What is the primary component of blood that forensic scientists analyze to determine blood type?

• Plasma

• Red Blood Cells

• White Blood Cells

• Platelets

Which test is commonly used to detect the presence of blood at a crime scene by producing a blue glow?

• Kastle-Meyer Test

• Luminol Test

• Hemoglobin Test

• Karl Landsteiner Test

True or False: Blood spatter analysis can help determine the position of a victim during an attack.

• True

• False