CRIMINAL INVESTIGATION THE ART AND THE
SCIENCE 2026 ACTUAL TEST PAPER
QUESTIONS SOLUTIONS VERIFIED COMPLETE
STUDY PACKAGE
◉ Why is securing the crime scene immediately important?
Answer: Because failure to do so can result in contamination and
loss of evidence
◉ What is the purpose of establishing a crime scene perimeter?
Answer: To restrict access and prevent contamination or destruction
of evidence
◉ What is the difference between the primary and secondary crime
scene?
Answer: The primary scene is where the crime occurred, while the
secondary scene is any related location connected to the crime
◉ What is the purpose of a contamination log?
Answer: To document all individuals entering and exiting the crime
scene to maintain accountability
,◉ Why must all individuals entering a crime scene be escorted?
Answer: To ensure they do not alter, destroy, or contaminate
evidence
◉ What is corpus delicti?
Answer: Evidence proving that a crime has occurred, which is
required before proving a suspect committed it
◉ What is associative evidence?
Answer: Evidence that links a suspect to a victim or crime scene
◉ What is circumstantial evidence?
Answer: Evidence that suggests a fact but does not directly prove it
◉ What is testimonial evidence?
Answer: A statement given by a witness under oath
◉ What is demonstrative evidence?
Answer: Evidence used to explain or illustrate facts rather than
directly prove them
◉ What is prima facie evidence?
, Answer: Evidence that is sufficient to establish a fact unless
disproved
◉ What is the significance of Locard's Exchange Principle?
Answer: It states that whenever two objects come into contact,
material is exchanged between them
◉ Why is trace evidence important in investigations?
Answer: It can link a suspect to a scene even when not visible to the
naked eye
◉ What is continuity of evidence?
Answer: The requirement that evidence be preserved without
alteration over time
◉ What is chain of custody?
Answer: The documented record of who handled evidence from
collection to court presentation
◉ Why is chain of custody critical?
Answer: It ensures evidence integrity and admissibility in court
◉ What happens if chain of custody is broken?
SCIENCE 2026 ACTUAL TEST PAPER
QUESTIONS SOLUTIONS VERIFIED COMPLETE
STUDY PACKAGE
◉ Why is securing the crime scene immediately important?
Answer: Because failure to do so can result in contamination and
loss of evidence
◉ What is the purpose of establishing a crime scene perimeter?
Answer: To restrict access and prevent contamination or destruction
of evidence
◉ What is the difference between the primary and secondary crime
scene?
Answer: The primary scene is where the crime occurred, while the
secondary scene is any related location connected to the crime
◉ What is the purpose of a contamination log?
Answer: To document all individuals entering and exiting the crime
scene to maintain accountability
,◉ Why must all individuals entering a crime scene be escorted?
Answer: To ensure they do not alter, destroy, or contaminate
evidence
◉ What is corpus delicti?
Answer: Evidence proving that a crime has occurred, which is
required before proving a suspect committed it
◉ What is associative evidence?
Answer: Evidence that links a suspect to a victim or crime scene
◉ What is circumstantial evidence?
Answer: Evidence that suggests a fact but does not directly prove it
◉ What is testimonial evidence?
Answer: A statement given by a witness under oath
◉ What is demonstrative evidence?
Answer: Evidence used to explain or illustrate facts rather than
directly prove them
◉ What is prima facie evidence?
, Answer: Evidence that is sufficient to establish a fact unless
disproved
◉ What is the significance of Locard's Exchange Principle?
Answer: It states that whenever two objects come into contact,
material is exchanged between them
◉ Why is trace evidence important in investigations?
Answer: It can link a suspect to a scene even when not visible to the
naked eye
◉ What is continuity of evidence?
Answer: The requirement that evidence be preserved without
alteration over time
◉ What is chain of custody?
Answer: The documented record of who handled evidence from
collection to court presentation
◉ Why is chain of custody critical?
Answer: It ensures evidence integrity and admissibility in court
◉ What happens if chain of custody is broken?
