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IAI - CSA TECHNIQUES OF CRIME SCENE INVESTIGATION EXAM
LATEST 2026 ACTUAL EXAM WITH COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS (100% VERIFIED ANSWERS)
|ALREADY GRADED A+| ||PROFESSOR VERIFIED|| ||BRANDNEW!!!||
How to process a print on the floor? - ANSWER-Photographed
with a camera on a tripod using oblique lighting. After
photographs are taken, the print can be lifted using an
electrostatic dust print lifter or a large rubber-backed lifter.
Fingerprints and DNA should be searched for and collected after
trace evidence is collected. - ANSWER-True
General rule of close up photography - ANSWER-The ruler and
the parallel film plane ensure the ability later to produce good-
quality enlargements or 1:1 photographs of the evidence
What information should be included in Crime Scene Sketches? -
ANSWER-Case-identifying information: case number; name of
suspect, victim, and investigator; person drawing the diagram;
and date and time the sketch was made. It should contain a scale,
if required, and distance measurements between items present
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on the sketch. The location depicted in the drawing and reference
points to located items should be included.
What is an elevation drawing? - ANSWER-This type of sketch is
used when the vertical, rather than the horizontal, plane is of
interest.
What type of evidence should be collected first? - ANSWER-most
fragile evidence such as fingerprints, touch DNA, and trace
evidence should be given attention first
What is one of the most important purposes of physical evidence?
- ANSWER-To establish the identity of the suspect or victim.
How does Fingerprint evidence occur? - ANSWER-Prints are
formed by friction ridges, which deposit grease and perspiration
on the object touched, and may be produced when criminals take
hold of an object or support themselves with their hands. Prints
may be formed when fingers are contaminated with foreign
material, such as dirt, blood, or grease, or when the fingers are
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pressed against a plastic material and produce a negative
impression of the pattern of the friction ridges.
In a Burglary investigation where should be a place to start
searching for prints? - ANSWER-The perpetrator's point of entry,
Searches for fingerprints also should be made in areas where the
burglar is suspected to have eaten or had a drink., Light switches,
circuit breakers, and fuses should always be examined, Burglars
sometimes bring tools or other objects to the scene and leave
them behind. Fingerprints may be detected on papers used to
wrap tools, on flashlights (do not forget to examine the batteries),
and other items such as the inside of latex gloves.
What are the three main groups Fingerprints can be divided into?
- ANSWER-(1) plastic fingerprints,
(2) prints of fingers contaminated with some foreign matter or
"visible prints," and
(3) latent fingerprints.
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What are plastic Fingerprints? - ANSWER-when a finger touches
or presses against plastic material and creates a negative
impression of its friction ridge pattern
What are prints from fingers contaminated with foreign matter? -
ANSWER-Prints can be left when fingers are contaminated with
other substances like pigments, ink, soot, flour, face powder, oils,
safe insulation, or blood.
What is Latent fingerprints - ANSWER-result from small amounts
of grease, sweat, and dirt deposited on a surface.
What do some fingerprint examiners use as a Universal developer
on smooth nonporous surfaces? - ANSWER-Black fingerprint
powder
Amido Black is used for? - ANSWER-Developing prints in blood
using the proteins present in blood. Turns blue-black.
IAI - CSA TECHNIQUES OF CRIME SCENE INVESTIGATION EXAM
LATEST 2026 ACTUAL EXAM WITH COMPLETE QUESTIONS AND
CORRECT DETAILED ANSWERS (100% VERIFIED ANSWERS)
|ALREADY GRADED A+| ||PROFESSOR VERIFIED|| ||BRANDNEW!!!||
How to process a print on the floor? - ANSWER-Photographed
with a camera on a tripod using oblique lighting. After
photographs are taken, the print can be lifted using an
electrostatic dust print lifter or a large rubber-backed lifter.
Fingerprints and DNA should be searched for and collected after
trace evidence is collected. - ANSWER-True
General rule of close up photography - ANSWER-The ruler and
the parallel film plane ensure the ability later to produce good-
quality enlargements or 1:1 photographs of the evidence
What information should be included in Crime Scene Sketches? -
ANSWER-Case-identifying information: case number; name of
suspect, victim, and investigator; person drawing the diagram;
and date and time the sketch was made. It should contain a scale,
if required, and distance measurements between items present
,2|Page
on the sketch. The location depicted in the drawing and reference
points to located items should be included.
What is an elevation drawing? - ANSWER-This type of sketch is
used when the vertical, rather than the horizontal, plane is of
interest.
What type of evidence should be collected first? - ANSWER-most
fragile evidence such as fingerprints, touch DNA, and trace
evidence should be given attention first
What is one of the most important purposes of physical evidence?
- ANSWER-To establish the identity of the suspect or victim.
How does Fingerprint evidence occur? - ANSWER-Prints are
formed by friction ridges, which deposit grease and perspiration
on the object touched, and may be produced when criminals take
hold of an object or support themselves with their hands. Prints
may be formed when fingers are contaminated with foreign
material, such as dirt, blood, or grease, or when the fingers are
,3|Page
pressed against a plastic material and produce a negative
impression of the pattern of the friction ridges.
In a Burglary investigation where should be a place to start
searching for prints? - ANSWER-The perpetrator's point of entry,
Searches for fingerprints also should be made in areas where the
burglar is suspected to have eaten or had a drink., Light switches,
circuit breakers, and fuses should always be examined, Burglars
sometimes bring tools or other objects to the scene and leave
them behind. Fingerprints may be detected on papers used to
wrap tools, on flashlights (do not forget to examine the batteries),
and other items such as the inside of latex gloves.
What are the three main groups Fingerprints can be divided into?
- ANSWER-(1) plastic fingerprints,
(2) prints of fingers contaminated with some foreign matter or
"visible prints," and
(3) latent fingerprints.
, 4|Page
What are plastic Fingerprints? - ANSWER-when a finger touches
or presses against plastic material and creates a negative
impression of its friction ridge pattern
What are prints from fingers contaminated with foreign matter? -
ANSWER-Prints can be left when fingers are contaminated with
other substances like pigments, ink, soot, flour, face powder, oils,
safe insulation, or blood.
What is Latent fingerprints - ANSWER-result from small amounts
of grease, sweat, and dirt deposited on a surface.
What do some fingerprint examiners use as a Universal developer
on smooth nonporous surfaces? - ANSWER-Black fingerprint
powder
Amido Black is used for? - ANSWER-Developing prints in blood
using the proteins present in blood. Turns blue-black.
