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36 Cards in this Set
- Front
- Back
Where is the crime scene?
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location of criminal activity
size of area type of crime comitted physical location of the crime |
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what is the primary location of the crime?
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where the original occurred
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what is the secondary location of the crime?
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subsequent crime scenes
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what is a macroscopic crime scene?
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one location, composed of many microscopic crime scenes
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what is a microscopic crime scene?
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focuses on specific type of physical evidence
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What are the different types of crimes committed?
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homicide, robbery, sexual assualt, etc.
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what are the different physical locations for crime scenes?
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indoors, outdoors, vehicle, etc.
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the body of the offense
*must be proven a crime has been committed (i.e. dead body should be produced in a murder trial) |
corpus delicti
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a certain criminal's repeated behavior
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modus operandi (MO)
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when two objects come into contact with one another, an exchange of matter takes place
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Locard Exchange Principle
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What can physical evidence do?
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It can link suspect, victim, crime scene, and objects to one another
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what can proving or disproving witness statements do?
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*can identify intentional lies
*can identify unintentional eyewitness mistakes |
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what types of information can be obtained from a crime scene?
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corpus delicti, modus operandi, linkage of persons, places, and things, proving or disproving witness statements, identification of suspects, and identification of unknown substances,
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what is class evidence?
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common to a group of objects or persons
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what is individual evidence?
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can be identified with a particular person or a single source
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what is physical evidence used to answer questions about?
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what took place, how the victim was killed, number of people involved, and the sequence of events
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what will a forensic scientist do?
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compare the questioned or unknown sample with a sample of known origin
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what are the different types of searches?
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link method, line or strip method, grid method, zone method, whell or ray method, and spiral method
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What are the three things that must be determined about a dead body?
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cause of death, manner of death, and mechanism of death
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injury, disease, or combination of the two responsible for initiating the sequence of disturbances brief or prolonged that prove to be fatal
ex. gunshot, stab wound, heart attack, cancer |
cause of death
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the dissection of the human body to determine the cause of death
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autopsy
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circumstances in which the cause of death arose
* ususlly most difficult to determine |
manner of death
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what are the types of manners of death?
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natural, accidental, homicide, suicide, and undetermined
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the termination of the life of the individual due to the disease process
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natural
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the termination of the life of the individual by an act that one would/could reasonably expect to survive
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accidental
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the termination of the life of an individual by an intentional act or intention omission by another individual
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homicide
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the intentional termination of one's own life
sometimes difficult to determine if accidental or intentional |
suicide
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a death in which the manner and or cause cannot be determined
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undetermined
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the physiological or biochemical abnormality incompatible with life which actually caused the death of the individual
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mechanism of death
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name the mechanism of death:
heart attack head injuries stab wounds poison hanging |
coronary artery disease
cerebral edema hemorrhage/exsanguination toxicity asphyxiation |
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antemortem
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before death
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perimortem
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at or around the time of death (within 5 minutes)
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postmortem
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after death
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refers to the state of a body after death, in which the muscles become stiff. It begins after around 3 hours, raching max stiffness after 12 hours, and gradually dissipates until approx. 72 hours after death
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riger mortis
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the maroon color that develops after the heart stops and no longer churns blood; heavier red blood cells settle downward from the serum by gravity as occurs in the plastic container when giving blood
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liver mortis
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refers to change in body temperature after the heart stops pumping and cellular oxidation, which keeps our body temps. at 98.6 degrees F, stops; the body temp. falls to room temp. (about 70 degrees F) at about 1.5 degrees F per hour
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algor mortis
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