ARIZONA FORENSIC SCIENCE TECHNICIAN
CERTIFICATION QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES
Q & A 2026 |INSTANT DOWNLOAD PDF
1. What is the primary role of a forensic science technician?
A. Collect and analyze physical evidence
B. Conduct criminal interrogations
C. Testify as a defense attorney
D. Serve as a police patrol officer
Answer: A
Rationale: Forensic science technicians are trained to collect,
preserve, and analyze physical evidence from crime scenes.
2. Chain of custody is important because it:
A. Tracks evidence movement and handling
B. Determines guilt or innocence
C. Replaces the need for forensic analysis
D. Prevents evidence from being photographed
Answer: A
Rationale: Maintaining chain of custody ensures evidence is
accounted for and admissible in court.
3. Which of the following is considered a class characteristic?
A. Fingerprints
B. Blood type
C. DNA profile
,D. Tool mark pattern
Answer: B
Rationale: Class characteristics narrow evidence to a group but
cannot uniquely identify an individual.
4. The principle of Locard’s Exchange Principle states:
A. Every contact leaves a trace
B. Suspects must be guilty if present
C. DNA testing is unnecessary
D. Evidence can’t be transferred without fingerprints
Answer: A
Rationale: Locard’s Principle asserts that perpetrators leave
trace evidence wherever they go.
5. Which of the following is considered trace evidence?
A. Hair
B. Large blood stains
C. Furniture
D. Weapons
Answer: A
Rationale: Trace evidence includes small materials transferred
during a crime, such as hair, fibers, and paint.
6. What is the proper first step at a crime scene?
A. Collect all evidence immediately
B. Secure and isolate the scene
C. Interview witnesses before documentation
D. Begin DNA analysis
,Answer: B
Rationale: Securing the scene prevents contamination and
preserves evidence integrity.
7. Which type of evidence can uniquely identify an individual?
A. DNA
B. Shoe prints
C. Hair without root
D. Fiber
Answer: A
Rationale: DNA profiling can uniquely identify individuals with
high accuracy.
8. What is the purpose of forensic toxicology?
A. Detect and identify drugs and poisons in biological samples
B. Collect fingerprints
C. Document the crime scene
D. Analyze soil samples only
Answer: A
Rationale: Forensic toxicologists detect chemicals in the body
to determine cause or involvement in crime.
9. Fingerprints are classified into which main patterns?
A. Loops, whorls, arches
B. Circular, linear, spiral
C. Swirls, loops, dots
D. Points, ridges, valleys
Answer: A
, Rationale: Fingerprints are categorized into loops, whorls, and
arches for identification purposes.
10. Which of the following is an example of direct evidence?
A. Eyewitness testimony
B. Blood type
C. Shoe print class characteristics
D. Fiber comparison
Answer: A
Rationale: Direct evidence directly proves a fact, such as a
witness observing a crime.
11. What type of forensic analysis would determine gunshot
residue on a suspect?
A. Trace evidence analysis
B. DNA analysis
C. Forensic toxicology
D. Latent fingerprint analysis
Answer: A
Rationale: Gunshot residue is considered trace evidence
analyzed to link suspects to firearms.
12. What is the purpose of a forensic laboratory report?
A. Document results and methods for court presentation
B. Prove guilt without trial
C. Replace courtroom testimony
D. Identify suspects solely based on opinions
Answer: A
CERTIFICATION QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) PLUS RATIONALES
Q & A 2026 |INSTANT DOWNLOAD PDF
1. What is the primary role of a forensic science technician?
A. Collect and analyze physical evidence
B. Conduct criminal interrogations
C. Testify as a defense attorney
D. Serve as a police patrol officer
Answer: A
Rationale: Forensic science technicians are trained to collect,
preserve, and analyze physical evidence from crime scenes.
2. Chain of custody is important because it:
A. Tracks evidence movement and handling
B. Determines guilt or innocence
C. Replaces the need for forensic analysis
D. Prevents evidence from being photographed
Answer: A
Rationale: Maintaining chain of custody ensures evidence is
accounted for and admissible in court.
3. Which of the following is considered a class characteristic?
A. Fingerprints
B. Blood type
C. DNA profile
,D. Tool mark pattern
Answer: B
Rationale: Class characteristics narrow evidence to a group but
cannot uniquely identify an individual.
4. The principle of Locard’s Exchange Principle states:
A. Every contact leaves a trace
B. Suspects must be guilty if present
C. DNA testing is unnecessary
D. Evidence can’t be transferred without fingerprints
Answer: A
Rationale: Locard’s Principle asserts that perpetrators leave
trace evidence wherever they go.
5. Which of the following is considered trace evidence?
A. Hair
B. Large blood stains
C. Furniture
D. Weapons
Answer: A
Rationale: Trace evidence includes small materials transferred
during a crime, such as hair, fibers, and paint.
6. What is the proper first step at a crime scene?
A. Collect all evidence immediately
B. Secure and isolate the scene
C. Interview witnesses before documentation
D. Begin DNA analysis
,Answer: B
Rationale: Securing the scene prevents contamination and
preserves evidence integrity.
7. Which type of evidence can uniquely identify an individual?
A. DNA
B. Shoe prints
C. Hair without root
D. Fiber
Answer: A
Rationale: DNA profiling can uniquely identify individuals with
high accuracy.
8. What is the purpose of forensic toxicology?
A. Detect and identify drugs and poisons in biological samples
B. Collect fingerprints
C. Document the crime scene
D. Analyze soil samples only
Answer: A
Rationale: Forensic toxicologists detect chemicals in the body
to determine cause or involvement in crime.
9. Fingerprints are classified into which main patterns?
A. Loops, whorls, arches
B. Circular, linear, spiral
C. Swirls, loops, dots
D. Points, ridges, valleys
Answer: A
, Rationale: Fingerprints are categorized into loops, whorls, and
arches for identification purposes.
10. Which of the following is an example of direct evidence?
A. Eyewitness testimony
B. Blood type
C. Shoe print class characteristics
D. Fiber comparison
Answer: A
Rationale: Direct evidence directly proves a fact, such as a
witness observing a crime.
11. What type of forensic analysis would determine gunshot
residue on a suspect?
A. Trace evidence analysis
B. DNA analysis
C. Forensic toxicology
D. Latent fingerprint analysis
Answer: A
Rationale: Gunshot residue is considered trace evidence
analyzed to link suspects to firearms.
12. What is the purpose of a forensic laboratory report?
A. Document results and methods for court presentation
B. Prove guilt without trial
C. Replace courtroom testimony
D. Identify suspects solely based on opinions
Answer: A
