Midterm 1 Flashcards
the original location of a crime or accident
primary crime scene
person thought to be capable of committing a crime
suspect
evidence that includes eyewitness accounts of an accident or crime scene
testimonial
physical evidence that is found at a crime scene in small but measurable amounts
trace
type of evidence found in blood, body fluids, and tissues that contain genetic information and can be used to link a suspect to a crime
DNA
intentionally setting a fire to cause damage or destroy evidence of another crime
arson
can be classified as aches, loops, or whorls
fingerprints
combined DNA index system used by law enforcement agencies to compare DNA samples to known suspects
CODIS
a second person associated with committing a crime
accomplice
statement of where a suspect was at the time of a crime
alibi
any evidence found at a crime scene in the form of a physical object
physical
an alternate location where additional evidence of a crime may be found
secondary crime scene
what are the four steps used to analyze a crime scene?
interview, examine, document, process
what type of evidence does the fbi consider to be the most valuable
dna
interviews witnesses and works with the csi unit to investigate the crime
detectives
determines the preliminary cause of death at the crime scene and conducts the autopsy
medical examiner
usually the first to arrive at a crime scene, responsible for securing the scene and detaining persons of interest
police officer
documents the crime scene and collects any physical evidence
csi unit
helps to determine if any search warrants are required to proceed and obtains those warrants from a judge
district attorney
may be called in if an expert is needed to analyze insect evidence or skeletal remains
specialists
the most common type of fingerprints
loops
a print found at the crime scene
latent print
type of fiber that is man-made, such as nylon or rayon, is classified as
synthetic
the bottom portion of hair nearest the scalp in which dna may be found
root
this principle states that with contact between two items, there will be an exchange
Locard
instrument that may be used to examine hairs and fibers in detail
microscope
the study of firearms and ammunition
ballistics
hair samples can be tested for nuclear dna whether or not the root is present
true or false
false
the most common type of plant fiber
cotton
how many minutiae points must be in common in order for prints to be considered matches in the us>
there is no minimum
what is known as the universal solvent
water
is it possible to show that a hair came from a specific person or animal
true or false
true
what does the abbreviation gsr mean
gunshot residue
the physical separation of a mixture into its individual components, such as black in being separated into different colors
chromatography
the database used to find matches for dna samples from a crime scene
CODIS
the smallest unit of textile material
fiber
substances that give color to objects, such as hair, paint, and fibers
pigments
the substance that makes up hair and fingernails
keratin
a type of fiber that is made from plants and animals
natural
most abundant cells in your body that are produced in the bone marrow
red blood cells
component of blood that is part of our immune system ad destroy pathogens in our body
white blood cells
clotting factors in the plasma that clot together to prevent blood loss from a wound
platelets
blood type that contains a agglutinogens
type a
blood type that contains a and b agglutinogens
type ab
indicates the presence of a specific protein; discovered while studying the rhesus monkeys
rh factor
people with type o blood are called universal
donors
patterns created when a bloody object comes in contact with another surface
transfer
pointed edges of a droplet that radiate out from the spatter and can help determine the direction of force
spines
type of bloodstain that is created when a force is applied to the source of blood
projected
test used at a crime scene to enhance a bloodstain to make it more visible in photographs
LCV
used by investigators to detect the presence of blood
luminol
type of bloodstain created by the force of gravity and appears as drops or blood pools
passive
bloodstains created by the application of force to the area where blood originated
spatter
stands for blood stain pattern analysis
BPA
people with type ab blood are called universal
recipients/receivers
blood type that does not contain a or b agglutinogens
type o
blood type that contains b agglutinogens
type b
our blood type is determined by these which are inherited from our parents
genes
yellowish liquid part of the blood
plasma
protein found in red blood cells that carries oxygen
hemoglobin
