Forensic Science Segment Final – Flashcards
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What is collected first at a crime scene?
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Adult insects
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What type of insect sometimes arrives on a dead body with beetles and eats fly eggs?
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Mites
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What can impact the timing of the blowfly life cycle?
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The air temperature
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Blowfly maggots typically hatch from the eggs on a body about how long after the blowflies first arrive?
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1 day
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Worldwide, there are about how many blowflies?
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Over 1000
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What did Bergeret d'Arbois provide to forensic entomology?
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One of the first estimations of postmortem intervals
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What is not noted when samples of insects are taken?
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The closest body of water
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Who challenged the idea that insects appeared spontaneously in decomposing meat?
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Francesco Redi
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Blowfly eggs hatch into what?
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Maggots
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What is a postmortem interval?
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The time since blowflies appear on the body
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True or false, Necrophagous insects (insects that feed on decomposing flesh) are the first insects to appear on human remains
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True
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True or false, There are three general areas within forensic entomology: medical/legal, urban, and stored products.
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True
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True or false, The weather does not have an effect on the blowfly life cycle.
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False
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True or false, Mites can delay the blowfly life cycle by eating the fly eggs.
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True
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True or false, a scanning electron microscope (SEM) may be used to distinguish between the eggs of different insect species
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True
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True or false, A forensic anthropologist may be asked to examine bones that have been exhumed from a grave, found in an unmarked burial, or reside in a museum collection.
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True
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True or false, Metal objects, such as knifes or bullets, that come into contact with bones can leave trace evidence on them.
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True
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True or false, sutures are all closed by the age of five.
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False
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True or false, photographs are rarely taken at the scene where bones are found
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False
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True or false, In general, sex cannot be determined from the bones of a person
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False
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A victim's height is estimated using what?
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The long bones of the arms and legs
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What can give an indication of the time since death?
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Scatter patterns
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Osteology is the study of what?
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Bones
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About how many forensic anthropologists are there in North America?
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Less than 200
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About how many forensic anthropologists are there in North America?
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Less than 200
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A body lying on the top of the ground will be skeletalized in about how long?
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Eight months
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What are three devices or techniques that might be used to identify the presence of human remains?
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Cadaver dogs, ground penetrating radar, and aerial photographs
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The "seams" where the pieces of the skull meet are also known as what?
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Sutures
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What does a forensic anthropologist not do during an inventory of the bones?
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Scans the skeleton into a facial reconstruction software
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What is a bone not in the arm?
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Any answer works besides humerus, ulna, and radius.
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Clusters always occur in multiples of what?
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2
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What is the smallest unit of data on the hard drive?
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Sectors
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Unplugging a computer can result in the information in what location being lost?
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RAM
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What part of the computer may contain visible data?
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Print spool file
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Data from RAM may be placed where to free up space?
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Swap file
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What part of the computer is RAM a part of? (Hardware, software, operating system, firewall, etc...)
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Hardware
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What is latent data?
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Generally invisible to the user.
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Which word best describes RAM? A) permanent B) stable C) unimportant D) volatile
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Volatile
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What is the main storage location of a computer?
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Hard drive
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The computer views unallocated space as what?
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Full
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True or false, the data in the swap file often comes from RAM
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True
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True or false Software is the set of instructions that allows a particular program to complete a task
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True
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True or false, The electronic crime scene is handled completely differently from a traditional crime scene
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False
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True or false, A print spool file is created each time the computer is powered on, just in case you decide to print something
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False
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True or false, programs and the instructions for running these programs are loaded into the RAM while the computer is using them
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True
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True or false, IP addresses are shown as a series of numbers, most commonly ###.###.###.###
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True
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True or false, databases are of little use to forensic scientists?
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False
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True or false, witnesses are in the only options investigators have in identifying facial patterns in an unnamed suspect's face.
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False
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True or false, NIBIN contains information about bullets and guns.
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True
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True or false, forensic science has experience few changed since the late 1800s
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False
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What does an iris scan do?
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It picks out the unique characteristics of each person's iris
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What is a challenge that forensic science faces in the future?
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Limited resources
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An IP address is designated by what?
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Numbers
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What notes information about the users who access a computer network?
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Log file
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What is like the "recent calls" list?
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Internet history
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CODIS collects what type of information?
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DNA
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E-FIT and similar software compares what?
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Faces
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What saves a portion of websites that are visited to make these websites quicker to reload the next time the user visits the site?
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Internet cache
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Chat messages are most likely to be found where on a computer?
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RAM
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The National Integrated Ballistic Information Network has information about what?
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Bullets
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What is one of the first things done when bones are discovered?
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They are photographed and sketched
