WorksheetsForensics Final Exam Review
Total questions: 90
Worksheet time: 45mins
Forensic science is defined as:
the study of bones
the application of science to law
investigation of murders
DNA science
The primary job of a crime scene investigator is
to collect and transport evidence from a crime scene
to question witnesses
to test the evidence
check for gunshots
The first step that the first investigator to arrive at a crime scene should take is
photograph everything before it is moved
walk the grid
secure the scene and establish a perimeter
make a rough sketch
Eye witness reports are less reliable than forensic evidence because…
People who see the same crime from different vantage points.
Factors, such as stress or distractions can affect a witnesses account of the crime
Memory is affected by familiarity with the area
All of the above
All of the following are “evidence search” methods, except
spiral search method
grid search method
quadrant/zone search method
triangular search method
An inference is a
conclusion or deduction based on observation
another name for hypothesis
random guess
prediction
The purpose of the rough sketch is to
create a realistic drawing of the crime scene
accurately depict the dimensions of the scene
give a 3-dimension representation of the crime scene
be used in court during trial
Evidence collected from a fire should be stored in
a paper bag
a cardboard box
an envelope
an air tight container
A bloody shirt found at a crime scene would be collected and sealed in
a “druggist fold”
paper bag
metal can
zip-lock bag
Evidence that arrives at the crime lab in an unsealed container should be
rejected or not accepted for analysis
immediately analyzed
sealed by the analyst and then analyzed
photographed and returned to the sender
Chain of custody means
who is controlling the crime scene
the persons in custody of the suspect
every person who handled the evidence
the chain of command during a criminal investigation
The first system of personal identification was called
anthropometry
scaling
palm printing
entomology
An example of biometrics would be
driver’s license
high school ID
palm print
your signature
A characteristic can be used for identification if
everybody possesses the characteristic
the characteristic varies from person to person
the characteristic can be measured
all of the above
The eye can be used for identification purposes because
everyone has different color eyes
the eye contains rods & cones
blood vessel pattern in the retina is unique
the pupil is an individual characteristic
Another name for fingerprint ridge characteristics is
epidermis
mutual print
latent characteristics
minutiae
Which fingerprint pattern is the most common?
Whorl
Loop
Arch
Tented Arch
A bloody fingerprint found at a crime scene would be an example of a
latent print
patent print
plastic print
none of the above
The following fingerprint is an example of a
radial loop
accidental whorl
tented arch
plain whorl
Another name for the study of lip prints is
lipology
cheiloscopy
kaleidoscopy
helioscopy
All of the following are examples of lip print patterns, except
parabolic grooves
diamond grooves
branching grooves
vertical grooves
Lip prints are not as accurate as fingerprints because
not everybody has lips
lip stick isn’t always worn
people can change the shape of their lips
lip prints can only be left on glass surfaces
Lip prints are considered unique because
line patterns on the lips
point by point comparison can be made
shape of the lips
all of the above
The arrangement of teeth in a particular species is called
Odontology
Dental forensics
dentition
dental arch
When a woman is violently assaulted, you would expect to find bite marks on the
back & arms
breast & buttock
neck
legs & back
Which of the following is a physical characteristic of a suspect’s teeth that can be used for identifying the suspect?
distance from cuspid to cuspid
spacing between teeth
missing teeth
all of the above
Dental records would include all of the following except
fillings
dentin material
extractions
crowns
Which of the following is an example of dental arch shape?
square shaped
round shaped
U shaped
S- shaped
The adult human skeleton contains _____ bones.
456
306
206
236
The best bone for determining the race of a victim would be
the femur
the humerus
the skull
the pelvis
While examining a femur a forensic anthropologist notices that there is no evidence of a growth plate on the ends of the bone. It can safely be assumed that
the victim is a female
the victim was younger than 8
the victim was older than 25
the victim was male
The best way to determine age from a child’s skeletal remains would be to
examine the dentition
look at the skull
measure the long bones
measure the lines of fusion
Non-movable joints in the bones of the skull are known as
sutures
ligaments
crevasses
cracks
One of the major differences between the male and female skull is
males have more teeth
females have an extra orbit
females have more sutures
males have larger mandibles
The pelvis is considered the best bone for determining the sex of the individual except
when dealing with bones from an individual over the age of 40
when the individual had a sex change operation
when dealing with a pre-adolescent individual
when you have a femur instead
Below is a diagram of two pelvic bones. Which pelvis came from a male?
A
B
The bones most useful in determining height are the
skull and femur
humerus and mandible
pelvis and ulnar
femur and humerus
You look the hair on your head under a microscope, and you noticed it has a medulla. Does this mean that the hair on the rest of your body also has a medulla?
yes
no
The most obvious difference between animal hair and human hair is
the medulla
the length
the color
the smell
A “cast” is made of a hair sample to
see the medulla
see the scales
determine the color
preserve the hair
A feature that makes hair good evidence is that hair
can be styled
burns easily
resists chemical decomposition
can be dyed
The cuticle is a hard _______________ layer with overlapping _________________ .
(2) keratinized, scales
(2) calcified, plates
(2) fibrous, filaments
(2) mucous, ridges
Hair grows from tiny pockets in the skin called
follicles
pores
sweat glands
medulla
There are 2 major groups of fibers
Man made & natural
Natural & wool
Man made & synthetic
Wool & cotton
An example of a vegetable fiber would be
wool
polyester
cotton
silk
Natural fibers can be subdivided into 3 categories. What are they?
animal, vegetable, cotton
animal, vegetable, synthetic
animal, synthetic, cotton
animal, vegetable, mineral
Animal fibers are composed of
protein
carbohydrates
polyester
fat
When looking through a microscope at a fiber sample, how could you determine if the sample is cotton or wool?
cotton has an unusual color
wool has scales
cotton has a medulla
wool is more curly
52. Man made fibers are easily distinguished from natural fibers when using the microscope because
Man made fibers have a uniform, regular appearance, while natural fibers have irregularities.
Man made fibers are always colored, while natural fibers are always white.
Man made fibers are shorter than natural fibers.
Man made fibers dissolve in water, while natural fibers do not.
The following diagram represents the cross view shape of several fibers. These fibers are examples of
animal fibers
synthetic fibers
silk fibers
wool fibers
All of the following are synthetic fibers except
acrylic
silk
polyester
polypropylene
In examining fibers, an example of a non-destructive test would be
burn test
microscopy
thermal decomposition
chemical tests
The study of the serums (liquids) of the body is called
serumology
plasmology
phlebotomy
serology
Liquid blood is made up of mostly
white blood cells
platelets
plasma
red blood cells
Another name for a red blood cell is
leukocyte
neutrophil
erythrocyte
basophil
If a mother has type AB blood and the father has type B blood, what are the possible phenotypes (blood types) of the children?
A
B
AB
all of the above
Which blood type would antibody A react with?
AB
BB
BO
OO
Based on the Rh genes of the parents in the diagram below, what are the possible Rh genotypes of their children?
++
--
+ -
all of the above
If a person has type O blood, what serum antibodies does that person have?
antibody A
antibodies A & B
antibody B
antibody O
Agglutination is when
blood clumps
antibody A attacks antibody B
a blood clot in the brain
platelets react
The most common blood type is
type A
type B
type AB
type O
Luminol is used to
separate DNA
determine blood type
detect blood
determine the time of death
Blood pattern analysis is useful for
reconstructing crime scenes
finding blood type
identifying genetic illnesses
determining the sex of the suspect
Blood can be found as
coagulated
dried
liquid
all of the above
A blood cast off pattern is caused by
blood smeared on a floor
blood being flung off a weapon
blood leaking from a vein
blood transferred to the assailant
The pigment found in red blood cells is called
hemoglobin
hemostat
gamma globulin
leukatrine
A forensic investigator who specializes in Blood Pattern Analysis can often determine if the assailant was left-handed or right-handed.
True
False
A blood clot is a mixture of
platelets
white & red blood cells
blood cells and platelets
blood cells, platelets & fibrin threads
The area of convergence is where
the forensic scientist meet
the blood drops originated
the clues of the crime lead
the crime scene is roped
In which direction is the blood traveling?
→
←
↑
↓
What is the correct order of the angles of impact (degrees) for the bloodstain picture below?
90°,60°,30°,20°
20°,30°,60°,90°
30°,20°,90°,60°
60°,90°,30°,20°
After committing a crime, the murderer completely cleans up the blood evidence by shampooing the rug and mopping the floor with warm soapy water. Would the investigators be able to detect and test for blood?
yes
no
What does this picture represent?
platelets
red blood cells
white blood cells
erythrocytes
The materials that make up a type of soil determine that soil’s chemical properties. An important chemical property of soil is whether it is acidic or _________________________________.
(4) basic
(1) metallic
(2) sandy
(3) organic
A characteristic of soil that can be used by a forensic investigator would be
color
texture
pH
all of the above
86. One important thing that an investigator can learn when looking at broken glass is
the direction from which the force came
the color of the glass
the age of the glass
the manufacturer of the glass
All of the following can help an investigator identify a piece of glass, except
color of glass
density
pH
refractive index
Glass is composed mostly of
dirt
silica
boron oxide
calcium chloride
The submersion method involves placing the glass fragment into different liquids of known refractive indexes. If a piece of glass and a liquid have the same refractive index, the glass fragment will seem:
larger when placed in the liquid.
smaller when placed in the liquid.
to disappear when placed in the liquid.
to reappear when placed in the liquid.
A body was found exhibiting rigor throughout the entire body. How long has the person been dead?
0-2 hours
24 hours
12 hours
2 days
On a dead body, which of the following areas would you expect a blowfly to lay its eggs?
on the hair
on the armpits
on the legs
in the nose
Maggots found on a dead body can be used to determine
the time of death
if the body was moved
whether the victim used drugs
all of the above
Rigor mortis is when
the muscles in a dead body stiffen
the killer is considered crazy
you work hard
the temperature
A person who applies their knowledge of insects to crime investigations is called
a pathologist
weird
entomologist
chemist
Blowflies find dead bodies because
they have good eyesight
they received "vibes"
they communicate with other flies
they "smell" rotting flesh
When trying to estimate the time of death by examining maggots on a dead body, the investigator must consider
the time of day
the race of the person
the temperature
stomach contents
On which body would you expect to find the largest blowfly larvae?
a tropical rainforest
a desert
the North Pole
South Shore Mall parking lot
When analyzing a handwriting sample, a document examiner will look at
history of the suspect
type of forged check
size of the letters
sex of the suspect
When analyzing a document, the paper can be tested for which of the following:
color
watermarks
thickness
all of the above
Chromatography is
another name for lip prints
a test to determine the lines on a lip print
a method used to separate pigments
the study of lip stick
