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Forensic Science Test Prep
all ten quizzes and questions are in here from Intro to Forensics. Covers chapters 3-10 with an added quiz from an in class presentation.
Terms in this set (98)
Crime scene processing is the same as crime scene investigation.
Which crimes do we place more investigative emphasis on?
Crimes against people
Which of the following is a search pattern?
photographs of crime secenes must include overall views, close ups, and _______?
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
according to lecture, 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
preliminary, cross projection, smooth
the rough sketch that is usually prepared at a crime scene is used to
precisely locate evidence
you should only document what you see
which is not a type of glass discussed in class?
a blood spatter pattern consisting of a large number of very fine, mist-like droplets indicates that the blood probably came from a
which is not one of the categories of patters we discussed in chapter 4
individualizing, reconstruction, sequencing. and these are all patters for analysis
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....
which is NOT a variable to cinsider when examining blood patterns?
blood alcohol level when blood is shed
does not travel a great distance
most reconstruction patterns are easily transported to the lab for further analysis
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
the basic fingerprint class patterns are:
arches, loops, and whorls
fingerprints change over the course of a person's lifetime
common fingerprint minutiae include
dots, bifurcations, islands
the fingerprint database is called:
chemical methods for the development of latent fingerprints include
the ACE-V method of print identification involves
analysis, comparison, evaluation, and verification
unknown fingerprints are entered into the data base as:
individualizing friction ridge detail also exists on your
palms, fingers, and toes
a person's ____ is usually more distinctive than their normal handwriting
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
writing instruments include
ball point pens, spray cans, paint brushes
natural variation in a person's handwriting is ___ when compared to the variation between individuals
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, writing instrument, and transfer medium
handwriting comparisons can be made using
how letters are made, 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
sliding a tool into the surface makes an indented tool mark
the four components of a firearm cartridge are
the primer, the propellant, the cartridge, and the barrel
toolmark examinations may provide the following information
the kind of tool used to make the mark
the caliber of a weapon is
the inside diameter of a gun barrel
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
the direction of the twist of the barrel of the gun
the depressed helical grooves in a bullet are called
which type of test is frequently done with recovered firearms to evaluate the possibility of accidental discharge?
trigger pull test
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
you are using phenolphthalein to test a reddish brown stain for the presence of blood. When you put a drop of phenolphthalein on the swab with your sample, it turns pink immediately. This test is:
invalid because it turned pink
The "Christmas Tree Stain" is a confirmatory test for
What anticoagulant compound was found in blood samples in the OJ simpson case?
Wet blood stains should be collected by
a substrate control sample helps to detect
interference resulting in false negatives/positives
in forensic biology, screening tests
may give false positives
in forensic biology, confirmatory tests
can determine a sample to the exclusion of all other possibilities
screening tests for semen are based on detecting the enzyme
there is a useful confirmatory test for the presence of saliva
how would you interpret the ABA test on the page?
what is detrimental to the survival of DNA?
bacteria, heat, moisture
what happened to the initial suspect in the Yates murder case?
he began a scholarship fund after winning a slander lawsuit
you have the same mitochondrial DNA as your
genetic differences among people that enable them to be distinguished are called genetic ___?
the majority of DNA is
the polymerase chain reaction (PCR) is a process which
makes many copies of a specific piece of DNA
what happened in the steven lawrence murder that generally cannot occur in the United States
he was tried again for the same crime
in a strand of DNA, cytosine (C) complementary pairs with
The national DNA database is called
Y-STR tests are designed to specifically identify
male DNA profiles
the fire triangle includes heat, fuel, and _____?
Chemical reactions that give off heat are called
the most common instrument used to give an indication of the type of accelerant used to start a fire is
The lowest temperature at which there is enough vapor to be ignited is called the
the process by which solid materials are decomposed by heat, forming smaller molecules that can support flaming combustion is called
in order to have a flaming combustion, both the fuel and the oxygen must be in the
the method for separating and concentrating ingnitable liquids that uses a syringe to collect samples is the
heated headspace method
substrate samples collected from the scene of a suspicious fire should be taken from
burned and unburned areas
a flammable liquid that was used to state a fire is called
the point of origin of a fire can often be determined by examination of burn patters in what pattern?
a vee shape
the synthetic opiate we discussed in class that was unknowingly injected by drug users and caused near instant death was
drug dependency is subdivided into two categories
psychological and physiological
narcotic drugs are
which is not a growth phase of hair
angel dust or PCP is what kind of drug
alcohol is an example of a
which of the following is not a hallucinogenic drug: marijuana, PCP, or LSD
they all are
shed head hair has
it is possible to individualize trace evidence.
which is the most abused drug on the world
which case does not generally require an autopsy?
a 78 year old heart attack victim who died at the hospital
there is a scientific way to precisely determine the time of death
the settling of blood in dependent areas post mortem is called
the buildup of lactic acid that causes muscle stiffness post mortem is called
the decomposition of blood in subcutaneous blood vessels causes an artifact called
the change in body temperature post mortem is called
how many hours post mortem does rigor mortis become fully present?
according to Ms. Clark's lecture, what body part is often missing from a body found in the wild?
What procedural steps can D take to prevent a prosecutor from presenting seized evidence to a grand jury?
The exclusionary rule, often referred to as fruit of the poisonous tree applies to what?
engaging in an act of sodomy where the victim is under the age of 14 and the offender is more than 4 years older
28. (210) Which force module (FM) contains specific weapons systems such as fighters, tankers and cargo aircraft crews, and maintenance teams?
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