TSA Forensics Practice Test 2023

Skeletal remains can provide loads of crucial info. What information can NOT be gathered from a human skeleton?

• Fatal injuries
• Age
• Sex
• Blood type

As the building blocks of genetics, DNA plays an important role in forensics. Which of the following statements is NOT true about DNA?

• Hairs, cells, and bodily fluids contain DNA
• Koalas and humans have nearly indistinguishable fingerprints
• Parental DNA can produce up to 10,000 combinations
• Identical twins have identical DNA

We leave latent fingerprints everywhere, due to the natural oils and perspiration of our hands. On a crime scene, what is used to develop them?

• Aluminum powder
• Linseed oil
• Fingerpaints
• Charcoal

Trace evidence might involve Bunter marks. What are Bunter marks?

• Stab wounds
• Bite marks
• Markings on bullets
• Test grades

Our fingerprints are more than just identifying features. What is a major function of fingerprint ridges?

• To express uniqueness
• To feel heat
• To grasp objects
• To allow moisture into skin

An unknown latent print might match points with that of a print on file. What is the minimum number of matching points required by U.S. law to assure a match?

• 20 points
• 12 points
• There is no legal requirement
• 100 points

Not all surfaces are alike. Why are clothing, carpet, fabric, and other textile surfaces difficult to obtain fingerprints from?

• Because textiles are super absorbent
• Because there isn't enough oil on the fingers for them to imprint
• Because suspects never touch fabric or carpets
• Because fingerprints evaporate on textiles

The introduction of certain bugs and their developmental phases can help determine a cadaver's stage of decomposition. Which insects are the first to appear?

• Blowflies
• Flesh flies
• Beetles
• Maggots

Mass disasters (plane or train crashes, for instance) require searching for identifying features in victims. What feature is used in around 93 percent of identifications?

• Fingerprints
• Documents
• Jewelry
• Dental records

Fingerprints are unique and, if left at a crime scene, they can help identify a suspect. What is the examination of these prints called?

• Dactyloscopy
• Paleontology
• Osteology
• Hematology