Forensic Science Exam
States that when a person comes into contact w/ an object or another
person, a cross- transfer of physical evidence can occur correct
answersDefine Locard's Principle.
1) Securing the Scene
2) Separating the Witnesses
3) Scanning the Scene
4) Seeing the Scene
5) Sketching the Scene
6) Searching for Evidence
7)Securing and Collecting Evidence correct answersReview the steps in
investigating a crime scene (The 7 S's)
8) Observation - gathering information around
us (i.e. eyewitnesses they tell the accounts of
a crime scene (varies with each witness))
9) Evidence - studies the different types of
evidence
10) Crime Scene Investigators - these consist
of police officers, crime-scene investigators,
medical examiners ( or coroners), detectives,
and specialists
11) Fingerprinting - studies the different type of
fingerprints and what chemicals are used to lift
them
12) Hair and Fibers - studies the different types
of hair and fibers that are found at the crime
scene
13) Toxicology - the study of drugs, poisons,
toxins, and other substances that harm a
person when used for
medical, recreational, or criminal purposes correct answersReview all
the different branches of forensic science and know what they study,
ballistics, trace evidence, entomology.
14)emotional state
15)whether you're alone or w/ a group
16)the number of people and/or animals in the area
17)what type of activity is going on around you
18)how much activity is occurring around you correct answersWhat are
the key factors that determine how a witness views a crime scene?
states that when a person comes into contact w/ an object or another
person, a cross- transfer of physical evidence can occur; intensity, duration,
nature of the entities in contact determine the extent of the transfer
correct answersWhat is the Locard Principle?
, -the exaggerated portrayal of forensic science on TV
shows that results in unrealistic public perceptions
-it influences the jury to have unrealistic
expectations in a
forensic science case correct answersWhat is the CSI effect, how does it
impact a jury in a forensic science case?
-animal or human hair
-fingerprints
-soil or plant material (including pollen)
-body fluids
-fiber or debris from clothing
-paint chips
-broken glass
-chemicals (such as drugs or explosives) correct answersWhat are some
examples of trace evidence?
Loop: a fingerprint pattern in which the ridge pattern flows inward and
returns in the direction of the origin (the most popular fingerprint
pattern)
Arch: a fingerprint pattern in which the ridge pattern originates from one
side of the print and continues to the other side
Whorl: a fingerprint pattern that resembles a bull's-eye correct
answersDescribe the following fingerprint patterns: loop, arch, whorl
They are lifted by dusting surfaces such as drinking glasses, the faucets on
sinks, telephones, and the like with a fine carbon powder can make a
fingerprint more visible. The chemicals include ninhydrin, cyanoacrylate
vapor, silver nitrate, and iodine fuming. correct answersDescribe how
fingerprints can be lifted and the chemicals used to view them
Minutiae: the combination of details in the shapes and positions of ridges in
fingerprints that makes each unique; also called ridge characteristics correct
answersDefine minutiae and ridge characteristics
Latent Prints: a concealed fingerprint made visible through the use of
powders or forensic techniques
Visible/Plastic Prints: a three-dimensional fingerprint made in soft
material such as clay,
soap, or putty correct answersDefine latent, visible and plastic prints,
and be able to give examples of situations where each type of print could
be found
new scanning technology and digital systems of identifying
patterns correct answersWhat is some of the latest technology
used in fingerprinting?
Medulla: the central core of a hair
Cortex: the region of a hair located outside the medulla that contains
granules of pigment
States that when a person comes into contact w/ an object or another
person, a cross- transfer of physical evidence can occur correct
answersDefine Locard's Principle.
1) Securing the Scene
2) Separating the Witnesses
3) Scanning the Scene
4) Seeing the Scene
5) Sketching the Scene
6) Searching for Evidence
7)Securing and Collecting Evidence correct answersReview the steps in
investigating a crime scene (The 7 S's)
8) Observation - gathering information around
us (i.e. eyewitnesses they tell the accounts of
a crime scene (varies with each witness))
9) Evidence - studies the different types of
evidence
10) Crime Scene Investigators - these consist
of police officers, crime-scene investigators,
medical examiners ( or coroners), detectives,
and specialists
11) Fingerprinting - studies the different type of
fingerprints and what chemicals are used to lift
them
12) Hair and Fibers - studies the different types
of hair and fibers that are found at the crime
scene
13) Toxicology - the study of drugs, poisons,
toxins, and other substances that harm a
person when used for
medical, recreational, or criminal purposes correct answersReview all
the different branches of forensic science and know what they study,
ballistics, trace evidence, entomology.
14)emotional state
15)whether you're alone or w/ a group
16)the number of people and/or animals in the area
17)what type of activity is going on around you
18)how much activity is occurring around you correct answersWhat are
the key factors that determine how a witness views a crime scene?
states that when a person comes into contact w/ an object or another
person, a cross- transfer of physical evidence can occur; intensity, duration,
nature of the entities in contact determine the extent of the transfer
correct answersWhat is the Locard Principle?
, -the exaggerated portrayal of forensic science on TV
shows that results in unrealistic public perceptions
-it influences the jury to have unrealistic
expectations in a
forensic science case correct answersWhat is the CSI effect, how does it
impact a jury in a forensic science case?
-animal or human hair
-fingerprints
-soil or plant material (including pollen)
-body fluids
-fiber or debris from clothing
-paint chips
-broken glass
-chemicals (such as drugs or explosives) correct answersWhat are some
examples of trace evidence?
Loop: a fingerprint pattern in which the ridge pattern flows inward and
returns in the direction of the origin (the most popular fingerprint
pattern)
Arch: a fingerprint pattern in which the ridge pattern originates from one
side of the print and continues to the other side
Whorl: a fingerprint pattern that resembles a bull's-eye correct
answersDescribe the following fingerprint patterns: loop, arch, whorl
They are lifted by dusting surfaces such as drinking glasses, the faucets on
sinks, telephones, and the like with a fine carbon powder can make a
fingerprint more visible. The chemicals include ninhydrin, cyanoacrylate
vapor, silver nitrate, and iodine fuming. correct answersDescribe how
fingerprints can be lifted and the chemicals used to view them
Minutiae: the combination of details in the shapes and positions of ridges in
fingerprints that makes each unique; also called ridge characteristics correct
answersDefine minutiae and ridge characteristics
Latent Prints: a concealed fingerprint made visible through the use of
powders or forensic techniques
Visible/Plastic Prints: a three-dimensional fingerprint made in soft
material such as clay,
soap, or putty correct answersDefine latent, visible and plastic prints,
and be able to give examples of situations where each type of print could
be found
new scanning technology and digital systems of identifying
patterns correct answersWhat is some of the latest technology
used in fingerprinting?
Medulla: the central core of a hair
Cortex: the region of a hair located outside the medulla that contains
granules of pigment
