Forensic Science Unit 4: Trace Evidence Review Questions

What is the primary goal of a forensic crime scene investigation?

• To collect only DNA evidence

• To reconstruct the events of the crime accurately

• To photograph the crime scene only

• To immediately arrest suspects

What is the best tool for analyzing microscopic glass fragments?

• Ultraviolet light

• Magnifying glass

• Microscope

• Chromatograph

What characteristic of naturally shed hair makes it less valuable as evidence?

• It contains mitochondrial DNA

• It has artificial pigments

• It lacks the root containing nuclear DNA

• It has unique structural differences

What is the outermost layer of hair called?

• Medulla

• Cortex

• Cuticle

• Follicle

Which part of the hair contains pigment and is the largest part of the hair shaft?

• Cortex

• Medulla

• Cuticle

• Root

How are fiber characteristics typically compared in forensic investigations?

• Only through chemical analysis

• Only through physical examination

• Through both physical and chemical characteristics

• Only through microscopic analysis

What makes soil particularly valuable as evidence?

• It's rare to find at crime scenes

• It only sticks to certain materials

• It's easily transferable and tends to stick, especially fine clay

• It can only be analyzed in specialized labs

Why is it important to document forensic evidence through photographs and notes?

• To make the crime scene look more dramatic  

  
  

• To ensure evidence is accurately recorded and preserved 

• To create misleading crime scene reports  

  
  

• To avoid collecting physical evidence  

  
  

What is used to observe Becke Lines in glass analysis?

• Ultraviolet light

• Liquid with known refractive index

• Microscope only

• Chemical reagents

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

How many characteristics are identified as components of someone's handwriting?

• 8

• 10

• 12

• 15