FORENSIC EXAM 4 QUESTIONS &
ANSWERS (GRADED A+)
When are fibers considered individual evidence? - ANSWERwhen they are torn
Which of these is the best description of Frye Standard? - ANSWERDeciding if the
procedure, principles or technique in question in a forensics case are generally
accepted by the relevant scientific community
A document examiner is hired to examine a questioned document against an
exemplar. He finds the following characteristics
1) Both documents used a blue Bic pen
2) Both documents used white Xerox paper
3) Both documents have unique handwriting characteristics
4) Both documents used a Mead #2 pencil
Which of the above characteristics is considered individual evidence? -
ANSWERItem 3
What type of DNA is extracted for STR analysis? - ANSWERnuclear
Blood was found at a crime scene. A forensic investigator performed a test in which
a drop of antiserum was placed on the blood to determine if it was human or animal.
The blood immediately coagulated. Which statements are true about this test? -
ANSWERI and III, a precipitin test was performed and determined the blood was
human
A person is convicted of DUI, which consequence WILL happen? - ANSWERDrivers
license revoked for 1-5 years
What specifically does STR measure - ANSWERthe number of repeating units
What must be photographed with an impression before it is moved or cast? -
ANSWERa scale
What is the term for a toolmark created when a harder object rubs against a softer
surface - ANSWERstriation
A ballistics is performing a round of tests surrounding a murder investigation. She is
firing some test rounds using several different guns thought to be used at the crime
scene. She fires these test rounds into water. What is the purpose of firing into
water? - ANSWERPreserving markings of firearm is better underwater
You are called to work with the Fire Marshall in a possible arson investigation. Which
forensic technique is most commonly used at the crime scene to identify possible
accelerants? - ANSWERGas chromatography
ANSWERS (GRADED A+)
When are fibers considered individual evidence? - ANSWERwhen they are torn
Which of these is the best description of Frye Standard? - ANSWERDeciding if the
procedure, principles or technique in question in a forensics case are generally
accepted by the relevant scientific community
A document examiner is hired to examine a questioned document against an
exemplar. He finds the following characteristics
1) Both documents used a blue Bic pen
2) Both documents used white Xerox paper
3) Both documents have unique handwriting characteristics
4) Both documents used a Mead #2 pencil
Which of the above characteristics is considered individual evidence? -
ANSWERItem 3
What type of DNA is extracted for STR analysis? - ANSWERnuclear
Blood was found at a crime scene. A forensic investigator performed a test in which
a drop of antiserum was placed on the blood to determine if it was human or animal.
The blood immediately coagulated. Which statements are true about this test? -
ANSWERI and III, a precipitin test was performed and determined the blood was
human
A person is convicted of DUI, which consequence WILL happen? - ANSWERDrivers
license revoked for 1-5 years
What specifically does STR measure - ANSWERthe number of repeating units
What must be photographed with an impression before it is moved or cast? -
ANSWERa scale
What is the term for a toolmark created when a harder object rubs against a softer
surface - ANSWERstriation
A ballistics is performing a round of tests surrounding a murder investigation. She is
firing some test rounds using several different guns thought to be used at the crime
scene. She fires these test rounds into water. What is the purpose of firing into
water? - ANSWERPreserving markings of firearm is better underwater
You are called to work with the Fire Marshall in a possible arson investigation. Which
forensic technique is most commonly used at the crime scene to identify possible
accelerants? - ANSWERGas chromatography
