Which option is NOT a described benefit of blood analysis?

• A. Can reveal the race of a person through DNA
• B. Can determine the age of a person through blood analysis
• C. Can prove a stain did not come from a particular person
• D. Can provide details about the content of blood

Answer: (B)

Blood analysis in this setting mainly helps identify who left the sample, what substances are present, and what the blood itself reveals about its content. It can provide DNA to compare with suspects, and that DNA profile can be used to exclude a person if it doesn’t match. It can also offer information about ancestry or population background, which some describe as related to race, and it can confirm or rule out potential sources of a stain by checking the blood’s components.

However, determining a person’s exact age from a blood sample is not a described or reliable benefit of standard blood analysis. There aren’t routine, admissible tests that pin down an individual’s age from blood alone, so that statement doesn’t fit the typical capabilities of blood analysis.

So the option stating age can be determined from blood is the one that doesn’t describe a normal benefit of blood analysis.