forensic science final
what is the goal of forensics? correct answersTo develop objective
findings that can assist in the investigation and prosecution of
perpetrators of crime or
absolve an innocent person from suspicion.
what is the proper method of transporting a microscope? correct
answersWHEN TRANSPORTING THE MICROSCOPE, HOLD IT IN AN UPRIGHT
POSITION WITH ONE HAND ON
ITS ARM AND THE OTHER SUPPORTING ITS BASE. AVOID SWINGING
THE INSTRUMENT DURING ITS
TRANSPORT AND JARRING THE INSTRUMENT WHEN SETTING IT DOWN.
what objective lens should you never use in conjunction with the course
adjustment knob? correct answersThe coarse adjustment knob should only
be used with the lowest power objective lens. Using the coarse focus with
higher lenses may result in crashing the lens into the slide.
when using a microscope, how will we see a specimen? will we see it just
as it was placed under the microscope? correct answersLook through the
eyepiece to see the specimen. If your microscope has more than one
objective lens, then use the lens that shows you the clearest and largest
view of the specimen. You can also turn the adjustment knobs until the
image is clear. Try rotating the slide to see the specimen in different ways.
what is deductive reasoning? correct answersderiving a conclusion from the
facts using a series of logical steps
how do people process information/stimuli that bombards them on a daily
basis? correct answersThe brain filters information, so it is not overwhelmed
what is the problem with trusting eyewitnesses at a crime scene? correct
answersthey might not remember correctly which can lead to a wrongful
arrest
how can we, as forensic scientists, become better observers? correct
answers1)Observe systematically. Start at one part of a crime scene and run
your eyes slowly over every piece. Look at every part of a piece of evidence.
2)Turn off filters. Do not pay attention to only what you think is important.
3)Leave the final interpretation of data until later
, what is the purpose of the innocence project? correct answersExonerates
the wrongly convicted through DNA testing and reforms the criminal justice
system to prevent future injustice.
what piece of evidence does the innocence project use to help set
innocent people free? correct answersThe use of DNA technology.
what percentage of wrongful conviction cases has the innocence project help
solve? correct answersTo date, 375 people in the United States have been
exonerated by DNA testing, including 21 who served time on
death row
why is the chain of custody important to follow? correct answersIt provides a
check-and- balance system to ensure that the integrity of evidence is
maintained from the crime scene to the court room. Not following the COC
may result in a faulty conviction or unsolved case.
what are the 7 S's of the crime scene investigation? correct answers-
SecuringTheScene
-Securing And Collecting Evidence
-Separating
The Witnesses
-
SketchingThe
Scene
-Seeing The
Scene
-Scanning The
Scene
-Searching For
Evidence
how is wet evidence collected? correct answerssuch items should be
packaged in paper bags/boxes.
how is small, dry evidence collected? correct answersOnly large
quantities of dry powder should be collected and stored in plastic bags.
Dry Evidence from a crime scene can be collected in plastic containers at
the scene and transported back to an evidence receiving area if the
storage time in plastic is two hours or less and this is done to prevent
contamination of other evidence.
if someone receives bagged evidence with a signature on a label, how must
they go about opening the bag to get to the evidence? correct answersif
unable to deliver to the Laboratory or if the object must be mailed.
what happens when a first responder "secures a crime scene?" correct
answersThe officer who responds first to the scene — has the responsibility
to protect the public and the crime scene and
control the changes made to the crime scene to the best of their ability.
what is the goal of forensics? correct answersTo develop objective
findings that can assist in the investigation and prosecution of
perpetrators of crime or
absolve an innocent person from suspicion.
what is the proper method of transporting a microscope? correct
answersWHEN TRANSPORTING THE MICROSCOPE, HOLD IT IN AN UPRIGHT
POSITION WITH ONE HAND ON
ITS ARM AND THE OTHER SUPPORTING ITS BASE. AVOID SWINGING
THE INSTRUMENT DURING ITS
TRANSPORT AND JARRING THE INSTRUMENT WHEN SETTING IT DOWN.
what objective lens should you never use in conjunction with the course
adjustment knob? correct answersThe coarse adjustment knob should only
be used with the lowest power objective lens. Using the coarse focus with
higher lenses may result in crashing the lens into the slide.
when using a microscope, how will we see a specimen? will we see it just
as it was placed under the microscope? correct answersLook through the
eyepiece to see the specimen. If your microscope has more than one
objective lens, then use the lens that shows you the clearest and largest
view of the specimen. You can also turn the adjustment knobs until the
image is clear. Try rotating the slide to see the specimen in different ways.
what is deductive reasoning? correct answersderiving a conclusion from the
facts using a series of logical steps
how do people process information/stimuli that bombards them on a daily
basis? correct answersThe brain filters information, so it is not overwhelmed
what is the problem with trusting eyewitnesses at a crime scene? correct
answersthey might not remember correctly which can lead to a wrongful
arrest
how can we, as forensic scientists, become better observers? correct
answers1)Observe systematically. Start at one part of a crime scene and run
your eyes slowly over every piece. Look at every part of a piece of evidence.
2)Turn off filters. Do not pay attention to only what you think is important.
3)Leave the final interpretation of data until later
, what is the purpose of the innocence project? correct answersExonerates
the wrongly convicted through DNA testing and reforms the criminal justice
system to prevent future injustice.
what piece of evidence does the innocence project use to help set
innocent people free? correct answersThe use of DNA technology.
what percentage of wrongful conviction cases has the innocence project help
solve? correct answersTo date, 375 people in the United States have been
exonerated by DNA testing, including 21 who served time on
death row
why is the chain of custody important to follow? correct answersIt provides a
check-and- balance system to ensure that the integrity of evidence is
maintained from the crime scene to the court room. Not following the COC
may result in a faulty conviction or unsolved case.
what are the 7 S's of the crime scene investigation? correct answers-
SecuringTheScene
-Securing And Collecting Evidence
-Separating
The Witnesses
-
SketchingThe
Scene
-Seeing The
Scene
-Scanning The
Scene
-Searching For
Evidence
how is wet evidence collected? correct answerssuch items should be
packaged in paper bags/boxes.
how is small, dry evidence collected? correct answersOnly large
quantities of dry powder should be collected and stored in plastic bags.
Dry Evidence from a crime scene can be collected in plastic containers at
the scene and transported back to an evidence receiving area if the
storage time in plastic is two hours or less and this is done to prevent
contamination of other evidence.
if someone receives bagged evidence with a signature on a label, how must
they go about opening the bag to get to the evidence? correct answersif
unable to deliver to the Laboratory or if the object must be mailed.
what happens when a first responder "secures a crime scene?" correct
answersThe officer who responds first to the scene — has the responsibility
to protect the public and the crime scene and
control the changes made to the crime scene to the best of their ability.
