IAI-CSA TECHNIQUES OF CRIME
SCENE INVESTIGATION
QUESTIONS 2025 |GUARANTEED
ACCURATE ANSWERS |VERIFIED |
A+ GRADED |COMPLETE
Evidence - ACCURATE ANSWERS✔✔ Something legally submitted to
a competent trier of fact as a means of ascertaining the truth of any
alleged matter under investigation.
Two Broad Types of Evidence - ACCURATE ANSWERS✔✔ 1.
Testimonial Evidence
2. Real, or Physical Evidence
What is Physical Evidence? - ACCURATE ANSWERS✔✔ Any Type of
Evidence with an objective existence, that is anything with size, shape,
and dimension.
Physical Evidence may also be considered either - ACCURATE
ANSWERS✔✔ 1. Direct evidence (evidence that supports a conclusion
of fact without inference)
OR
,2. Circumstantial evidence (evidence that requires inference to connect it
to a conclusion of fact).
Physical Evidence - ACCURATE ANSWERS✔✔ May be more reliable
than eyewitnesses to crimes.
CSI Effect - ACCURATE ANSWERS✔✔ Has made jurors expect, even
demand, physical evidence.
One Factor making the public's notion of the role of physical evidence -
ACCURATE ANSWERS✔✔ Science and technology are perceived by
most of the public to be unbiased and not subject to manipulation.
Negative Evidence - ACCURATE ANSWERS✔✔ the absence of
physical evidence. May provide useful information and even stop
defense arguments at the time of trial
Can every item of physical evidence be directly associated to a specific
person, place, or thing and believe that it is possible to link that evidence
to a unique source. - ACCURATE ANSWERS✔✔ No
Can Majority of Physical Evidence found at crime scenes be only
Classified - ACCURATE ANSWERS✔✔ True
EXAMLINKS
STUDY SMART.
,Classification of Evidence - ACCURATE ANSWERS✔✔ Meaning
physical evidence placed into groups with all other items having the
same properties or class characteristics.
Types of Pattern Evidence - ACCURATE ANSWERS✔✔ (fingerprints,
firearms evidence, footwear evidence, tire impressions, and tool marks)
Practitioners would offer a conclusive opinion that the known and
questioned item came from a common source to a reasonable degree of
scientific certainty.
The ability to associate an item of evidence to a sole, unique source is
currently being hotly debated. - ACCURATE ANSWERS✔✔ True
What does DNA testing use? - ACCURATE ANSWERS✔✔ Statistical
occurrence of discrete pieces of genetic material or alleles.
Can physical evidence that is identified corroborate testimony, place a
subject at a scene, and be useful in a variety of ways as an interrogation
tool? - ACCURATE ANSWERS✔✔ Yes
Chain of Custody - ACCURATE ANSWERS✔✔ Proof that evidence
collected during an investigation and the evidence ultimately submitted
to the court are one and the same. To prove that the integrity of the
physical evidence has been maintained. Shows who had contact with the
EXAMLINKS
STUDY SMART.
, evidence, at what time, under what circumstances, and what changes, if
any, were made to the evidence.
General Rule on collecting evidence - ACCURATE ANSWERS✔✔ As
much material as is reasonably possible to collect should be taken. More
is better than less.
What is needed for known/exemplar samples for DNA? - ACCURATE
ANSWERS✔✔ Blood samples or buccal (cheek) swabs from the victim
and suspect are needed.
What is needed for known/reference or exemplar samples for
Automobile Specimens? - ACCURATE ANSWERS✔✔ A known
sample of paint from the questioned vehicle must be submitted for
comparison.
What is a good practice for packaging small objects? - ACCURATE
ANSWERS✔✔ Double-wrap very small objects such as hair, fibers, or
glass fragments. These items should first be folded up in a sheet of
paper, such as a pharmacist's fold, and then placed in an envelope
How should any potential hazard evidence be labeled? - ACCURATE
ANSWERS✔✔ Labeled with any potential hazards such as biohazard
stickers
EXAMLINKS
STUDY SMART.
SCENE INVESTIGATION
QUESTIONS 2025 |GUARANTEED
ACCURATE ANSWERS |VERIFIED |
A+ GRADED |COMPLETE
Evidence - ACCURATE ANSWERS✔✔ Something legally submitted to
a competent trier of fact as a means of ascertaining the truth of any
alleged matter under investigation.
Two Broad Types of Evidence - ACCURATE ANSWERS✔✔ 1.
Testimonial Evidence
2. Real, or Physical Evidence
What is Physical Evidence? - ACCURATE ANSWERS✔✔ Any Type of
Evidence with an objective existence, that is anything with size, shape,
and dimension.
Physical Evidence may also be considered either - ACCURATE
ANSWERS✔✔ 1. Direct evidence (evidence that supports a conclusion
of fact without inference)
OR
,2. Circumstantial evidence (evidence that requires inference to connect it
to a conclusion of fact).
Physical Evidence - ACCURATE ANSWERS✔✔ May be more reliable
than eyewitnesses to crimes.
CSI Effect - ACCURATE ANSWERS✔✔ Has made jurors expect, even
demand, physical evidence.
One Factor making the public's notion of the role of physical evidence -
ACCURATE ANSWERS✔✔ Science and technology are perceived by
most of the public to be unbiased and not subject to manipulation.
Negative Evidence - ACCURATE ANSWERS✔✔ the absence of
physical evidence. May provide useful information and even stop
defense arguments at the time of trial
Can every item of physical evidence be directly associated to a specific
person, place, or thing and believe that it is possible to link that evidence
to a unique source. - ACCURATE ANSWERS✔✔ No
Can Majority of Physical Evidence found at crime scenes be only
Classified - ACCURATE ANSWERS✔✔ True
EXAMLINKS
STUDY SMART.
,Classification of Evidence - ACCURATE ANSWERS✔✔ Meaning
physical evidence placed into groups with all other items having the
same properties or class characteristics.
Types of Pattern Evidence - ACCURATE ANSWERS✔✔ (fingerprints,
firearms evidence, footwear evidence, tire impressions, and tool marks)
Practitioners would offer a conclusive opinion that the known and
questioned item came from a common source to a reasonable degree of
scientific certainty.
The ability to associate an item of evidence to a sole, unique source is
currently being hotly debated. - ACCURATE ANSWERS✔✔ True
What does DNA testing use? - ACCURATE ANSWERS✔✔ Statistical
occurrence of discrete pieces of genetic material or alleles.
Can physical evidence that is identified corroborate testimony, place a
subject at a scene, and be useful in a variety of ways as an interrogation
tool? - ACCURATE ANSWERS✔✔ Yes
Chain of Custody - ACCURATE ANSWERS✔✔ Proof that evidence
collected during an investigation and the evidence ultimately submitted
to the court are one and the same. To prove that the integrity of the
physical evidence has been maintained. Shows who had contact with the
EXAMLINKS
STUDY SMART.
, evidence, at what time, under what circumstances, and what changes, if
any, were made to the evidence.
General Rule on collecting evidence - ACCURATE ANSWERS✔✔ As
much material as is reasonably possible to collect should be taken. More
is better than less.
What is needed for known/exemplar samples for DNA? - ACCURATE
ANSWERS✔✔ Blood samples or buccal (cheek) swabs from the victim
and suspect are needed.
What is needed for known/reference or exemplar samples for
Automobile Specimens? - ACCURATE ANSWERS✔✔ A known
sample of paint from the questioned vehicle must be submitted for
comparison.
What is a good practice for packaging small objects? - ACCURATE
ANSWERS✔✔ Double-wrap very small objects such as hair, fibers, or
glass fragments. These items should first be folded up in a sheet of
paper, such as a pharmacist's fold, and then placed in an envelope
How should any potential hazard evidence be labeled? - ACCURATE
ANSWERS✔✔ Labeled with any potential hazards such as biohazard
stickers
EXAMLINKS
STUDY SMART.
