UF PHA6936 Final Test Bank Questions and
Answers 2026 | Complete Exam Prep with
Explanations | Grade A+
• Which crimes do we place more investigative emphasis on? -✓✓Crimes against
people
• Which of the following is a search pattern? -✓✓grid
• photographs of crime secenes must include overall views, close ups, and _______? -
✓✓midrange
• crime scene documentation methods do not include: -✓✓cell phone records
• what can affect how you prepare to conduct a crime scene investigation? -✓✓location,
weather, time of day
• What is the first thing a first responder should do at a major crime scene? -✓✓search
for and detain the suspect
• Types of crime sketches include -✓✓rough, cross-projection, final
• the rough sketch that is usually prepared at a crime scene is used to -✓✓precisely
locate evidence
• you should only document what you see -✓✓false
• a blood spatter pattern consisting of a large number of very fine, mist-like droplets
indicates that the blood probably came from a -✓✓gunshot wound
• Types of Glass -✓✓Soda-lime, borosilicate, and leaded
• A swipe bloodstain pattern is the result of -✓✓a bloody object in motion contacting
another clean surface
• Blood spatter patterns can indicate -✓✓how many sources of blood there were, what
type of weapon was used, the number of times a weapon was used
• The ______ the droplet, the ______the force that was used to create the spatter -
✓✓smaller, the greater
• When a fracture line in glass hits a pre-existing fracture line it.... -✓✓stops
,• Which is NOT a variable to consider when examining blood patterns? -✓✓blood
alcohol level when blood is shed
• Gunshot residue: -✓✓does not travel a great distance
• Most reconstruction patterns are easily transported to the lab for further analysis (T/F)
-✓✓false
• This is NOT a fundamental principle of fingerprinting -✓✓Fingerprints are formed
when someone is about five years old
• This type of fingerprint is a three dimensional impression -✓✓plastic
• The basic fingerprint class patterns are: -✓✓arches, loops, and whorls
• Fingerprints change over the course of a person's lifetime (T/F) -✓✓false
• Common fingerprint minutiae include -✓✓dots, bifurcations, islands
• The fingerprint database is called: -✓✓Automated Fingerprint Identification System
(AFIS)
• Chemical methods for the development of latent fingerprints include -✓✓Ninhydrin,
Diazafluoren (DFO), Sticky side powder, iodine fuming, cyanoacrylate fuming
• The ACE-V method of print identification involves -✓✓analysis, comparison,
evaluation, and verification
• Unknown fingerprints are entered into the data base as: -✓✓AFIS
• Individualizing friction ridge detail also exists on your -✓✓palms, fingers, and feet
• A person's ____ is usually more distinctive than their normal handwriting -
✓✓signature
• When collecting document evidence, it is important to carefully protect the document
to avoid -✓✓loss of possible DNA, loss of possible indentations, loss of possible latent
print evidence
• Questioned document examiners prefer to work with copies so they do not damage
the original document (T/F) -✓✓False
• Writing instruments include -✓✓ball point pens, fountain pens, fiber tip pens, pencil
,• Pencils, fiber and ballpoint pen writings are able to be traced back to the specific one.
(T/F) -✓✓False
• Steel and fountain pens do produce identifying characteristics with time allowing
writing to be traced back to a specific pen. (T/F) -✓✓True
• Natural variation in a person's handwriting is ___ when compared to the variation
between individuals -✓✓always less
• Collected writing samples should be -✓✓authenticated and from an appropriate time
period.
• The three parts of the writing process that can yield useful information are -✓✓writing
surface (Paper), writing instrument (Pen), and transfer medium (ink)
• Handwriting comparisons can be made using -✓✓construction of letters, where
pressure is applied, and connections between letters
• Indented writings on evidence can be visualized with an instrument called -✓✓an
Electrostatic Detection Apparatus (ESDA)
• It is not possible to examine a document to see what printer or copier it could have
originated from (T/F) -✓✓False
• Sliding a tool into the surface makes an indented tool mark (T/F) -✓✓False
• The three components of a cartridge case are -✓✓the primer, the propellant, and the
bullet
• Toolmark examinations may provide the following information -✓✓the kind of tool
used to make the mark
• The caliber of a weapon is -✓✓nominal indicator of bore diameter, diameter between
upper surfaces of opposing lands
• Gunshot residue is characterized by the presence of the elements -✓✓lead, barium,
and antimony
• Class characteristics of a firearm detectable from a fired bullet include -✓✓caliber,
lands/grooves, and rifling (direction and degree)
• The depressed helical grooves in a bullet are called -✓✓land and grooves
, • Which type of test is frequently done with recovered firearms to evaluate the possibility
of accidental discharge? -✓✓Firearms Function Testing
• Gunshot residue (GSR) testing can be difficult to perform because... -✓✓GSR
particles do not travel far, can be washed off and only last a few hours
• Pushing a tool into the surface makes a striated tool mark (T/F) -✓✓False
• You are using phenolphthalin to test a reddish-brown stain for the presence of blood.
When you put a drop of phenolphthalin on the swab with your sample, it turns pink
immediately. This test is: -✓✓Negative because it turned pink before the reaction was
catalyzed.
• The "Christmas Tree Stain" is a confirmatory test for -✓✓Semen by finding sperm
• What anticoagulant compound was found in blood samples in the OJ simpson case? -
✓✓EDTA
• Wet blood stains should be collected by -✓✓swabbing
• A substrate control sample helps to detect -✓✓interference resulting in false
negatives/positives
• Screening tests can give... -✓✓False positives
• Confirmatory tests can... -✓✓identify a sample to the exclusion of all others
• Screening tests for semen are based on detecting the enzyme ... -✓✓Acid
phosphatase
• There is a confirmatory test for the presence of saliva (T/F) -✓✓False
• What is detrimental to the survival of DNA? -✓✓bacteria, heat, moisture
• You have the same mitochondrial DNA as your ... -✓✓sibling and mother
• Genetic differences among people that enable them to be distinguished are called
genetic ___? -✓✓polymorphisms
• The majority of DNA is ... -✓✓non-coding
• The polymerase chain reaction (PCR) is a process which ... -✓✓makes many copies
of a specific piece of DNA
Answers 2026 | Complete Exam Prep with
Explanations | Grade A+
• Which crimes do we place more investigative emphasis on? -✓✓Crimes against
people
• Which of the following is a search pattern? -✓✓grid
• photographs of crime secenes must include overall views, close ups, and _______? -
✓✓midrange
• crime scene documentation methods do not include: -✓✓cell phone records
• what can affect how you prepare to conduct a crime scene investigation? -✓✓location,
weather, time of day
• What is the first thing a first responder should do at a major crime scene? -✓✓search
for and detain the suspect
• Types of crime sketches include -✓✓rough, cross-projection, final
• the rough sketch that is usually prepared at a crime scene is used to -✓✓precisely
locate evidence
• you should only document what you see -✓✓false
• a blood spatter pattern consisting of a large number of very fine, mist-like droplets
indicates that the blood probably came from a -✓✓gunshot wound
• Types of Glass -✓✓Soda-lime, borosilicate, and leaded
• A swipe bloodstain pattern is the result of -✓✓a bloody object in motion contacting
another clean surface
• Blood spatter patterns can indicate -✓✓how many sources of blood there were, what
type of weapon was used, the number of times a weapon was used
• The ______ the droplet, the ______the force that was used to create the spatter -
✓✓smaller, the greater
• When a fracture line in glass hits a pre-existing fracture line it.... -✓✓stops
,• Which is NOT a variable to consider when examining blood patterns? -✓✓blood
alcohol level when blood is shed
• Gunshot residue: -✓✓does not travel a great distance
• Most reconstruction patterns are easily transported to the lab for further analysis (T/F)
-✓✓false
• This is NOT a fundamental principle of fingerprinting -✓✓Fingerprints are formed
when someone is about five years old
• This type of fingerprint is a three dimensional impression -✓✓plastic
• The basic fingerprint class patterns are: -✓✓arches, loops, and whorls
• Fingerprints change over the course of a person's lifetime (T/F) -✓✓false
• Common fingerprint minutiae include -✓✓dots, bifurcations, islands
• The fingerprint database is called: -✓✓Automated Fingerprint Identification System
(AFIS)
• Chemical methods for the development of latent fingerprints include -✓✓Ninhydrin,
Diazafluoren (DFO), Sticky side powder, iodine fuming, cyanoacrylate fuming
• The ACE-V method of print identification involves -✓✓analysis, comparison,
evaluation, and verification
• Unknown fingerprints are entered into the data base as: -✓✓AFIS
• Individualizing friction ridge detail also exists on your -✓✓palms, fingers, and feet
• A person's ____ is usually more distinctive than their normal handwriting -
✓✓signature
• When collecting document evidence, it is important to carefully protect the document
to avoid -✓✓loss of possible DNA, loss of possible indentations, loss of possible latent
print evidence
• Questioned document examiners prefer to work with copies so they do not damage
the original document (T/F) -✓✓False
• Writing instruments include -✓✓ball point pens, fountain pens, fiber tip pens, pencil
,• Pencils, fiber and ballpoint pen writings are able to be traced back to the specific one.
(T/F) -✓✓False
• Steel and fountain pens do produce identifying characteristics with time allowing
writing to be traced back to a specific pen. (T/F) -✓✓True
• Natural variation in a person's handwriting is ___ when compared to the variation
between individuals -✓✓always less
• Collected writing samples should be -✓✓authenticated and from an appropriate time
period.
• The three parts of the writing process that can yield useful information are -✓✓writing
surface (Paper), writing instrument (Pen), and transfer medium (ink)
• Handwriting comparisons can be made using -✓✓construction of letters, where
pressure is applied, and connections between letters
• Indented writings on evidence can be visualized with an instrument called -✓✓an
Electrostatic Detection Apparatus (ESDA)
• It is not possible to examine a document to see what printer or copier it could have
originated from (T/F) -✓✓False
• Sliding a tool into the surface makes an indented tool mark (T/F) -✓✓False
• The three components of a cartridge case are -✓✓the primer, the propellant, and the
bullet
• Toolmark examinations may provide the following information -✓✓the kind of tool
used to make the mark
• The caliber of a weapon is -✓✓nominal indicator of bore diameter, diameter between
upper surfaces of opposing lands
• Gunshot residue is characterized by the presence of the elements -✓✓lead, barium,
and antimony
• Class characteristics of a firearm detectable from a fired bullet include -✓✓caliber,
lands/grooves, and rifling (direction and degree)
• The depressed helical grooves in a bullet are called -✓✓land and grooves
, • Which type of test is frequently done with recovered firearms to evaluate the possibility
of accidental discharge? -✓✓Firearms Function Testing
• Gunshot residue (GSR) testing can be difficult to perform because... -✓✓GSR
particles do not travel far, can be washed off and only last a few hours
• Pushing a tool into the surface makes a striated tool mark (T/F) -✓✓False
• You are using phenolphthalin to test a reddish-brown stain for the presence of blood.
When you put a drop of phenolphthalin on the swab with your sample, it turns pink
immediately. This test is: -✓✓Negative because it turned pink before the reaction was
catalyzed.
• The "Christmas Tree Stain" is a confirmatory test for -✓✓Semen by finding sperm
• What anticoagulant compound was found in blood samples in the OJ simpson case? -
✓✓EDTA
• Wet blood stains should be collected by -✓✓swabbing
• A substrate control sample helps to detect -✓✓interference resulting in false
negatives/positives
• Screening tests can give... -✓✓False positives
• Confirmatory tests can... -✓✓identify a sample to the exclusion of all others
• Screening tests for semen are based on detecting the enzyme ... -✓✓Acid
phosphatase
• There is a confirmatory test for the presence of saliva (T/F) -✓✓False
• What is detrimental to the survival of DNA? -✓✓bacteria, heat, moisture
• You have the same mitochondrial DNA as your ... -✓✓sibling and mother
• Genetic differences among people that enable them to be distinguished are called
genetic ___? -✓✓polymorphisms
• The majority of DNA is ... -✓✓non-coding
• The polymerase chain reaction (PCR) is a process which ... -✓✓makes many copies
of a specific piece of DNA
