crime scene Flashcards

1
Q

types of information that can be obtained from forensics testing and examination of physical evidence

A

linkage of persons, scenes, or objects; investigative leads; information on the corpus delicti; information on the modus operandi; proving or disproving witness statements; identification of the suspect(s); identification of unknown substances; reconstruction of a crime

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2
Q

corpus delicti

A

a crime must be proved to have occurred before a person can be convicted

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3
Q

modus operandi

A

someone’s habits of working; mode of operation

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4
Q

crime scene management

A
  1. information management
  2. manpower management
  3. technology management
  4. logistics management
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5
Q

crime scene security measures

A

when first responders protect the crime scene

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6
Q

primary crime scene

A

site of the original criminal activity

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7
Q

secondary crime scene

A

subsequent crime scenes

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8
Q

macroscopic crime scene

A

the broad crime scene

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9
Q

microscopic crime scene

A

the smaller crime scenes in the broad crime scene

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10
Q

walk-through

A

preliminary scene survey

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11
Q

crime scene map

A

use of imaging technology and mapping technology to create a virtual layout

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12
Q

the W’s

A

who, what, when, where, and why

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13
Q

videography

A

video recording of the crime scene

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14
Q

crime scene sketch

A

documenting the crime scene in sketches

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15
Q

geometric patterns

A
  1. link
    2 line or strip
  2. grid
  3. zone
  4. wheel or ray
  5. spiral method
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16
Q

types of sketches

A

rough and finished sketch

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17
Q

techniques used to obtain measurements for the crime scene sketch

A

triangulation; baseline; and polar coordinates

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18
Q

crime scene reconstruction

A

process of determining or eliminating the events that could have occurred at the crime scene

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19
Q

process in reconstructing a crime scene

A
  1. data collection
  2. conjecture
  3. hypothesis formulation
  4. testing
  5. theory formulation
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20
Q

major tasks of documentation

A
  1. note taking
  2. videography
  3. photography
  4. sketching
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21
Q

coroner

A

government agent charged with responsibility for death investigations

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22
Q

medical examiners

A

a medically qualified public officer whose duty is to investigate deaths occurring under unusual or suspicious circumstances, to perform postmortems, and to initiate inquests

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23
Q

forensic pathologist

A

physicians specializing in the diagnose of diseas

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24
Q

cause of death

A

disease or injury that initiated the lethal chain of events that led to death

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25
Q

mechanism of death

A

biochemical or physiological abnormality produced by the cause of death that is incompatible with life

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26
Q

manner of death

A

defined as the fashion in which the cause of death came to be

27
Q

NASH

A

four manners of death; natural, accidental, homicidal, suicidal

28
Q

rigor mortis

A

stiffening in muscles following death

29
Q

livor mortis

A

discoloration of the body that occurs from the settling of of red blood cells

30
Q

algor mortis

A

calling of the body that occurs after death, assuming the ambient body temperature is lower than body temperature

31
Q

sudden death

A

death that occurs within a few hours of the onset of symptoms or death without any symptoms

32
Q

incised wounds

A

caused by a clean, sharp-edged object such as a knife, razor, or glass splinter

33
Q

autopsy

A

to look at oneself

34
Q

necropsy

A

looking at the dead

35
Q

inframammary incision

A

made in the fold where the lower part of the breast meets the chest wall

36
Q

types of mechanical trauma

A

sharp force and blunt force trauma

37
Q

sharp force

A

caused by sharp implements

38
Q

blunt force

A

caused by firearms

39
Q

lead snowstorm

A

white fragments of lead around the missing tissue

40
Q

penetrating gunshot wound

A

an entrance wound and no exit wound

41
Q

perforating gunshot wound

A

an entrance and exit wound

42
Q

distance determination

A

distance from the shooter to the victim

43
Q

contact/near-contact wounds

A

result of close range gunfight, suicide, or execution

44
Q

carboxymyoglobin

A

a compound formed from myoglobin on exposure to carbon monoxide

45
Q

stippling

A

creation of a pattern simulating varying degrees of solidity or shading by using small dots

46
Q

distant

A

any distance beyond that which produces stippling

47
Q

laceration

A

caused by gunshot exit wounds

48
Q

abraded

A

scraped skin

49
Q

hollow-point bullets

A

handgun bullets that are designed to enlarge their diameter during a passage through tissue are common

50
Q

asphyxia

A

interruption of oxygenation of the brain

51
Q

carbon monoxide

A

a colorless, odorless, and tasteless gas that is slightly less dense than air; toxic to hemoglobic animals

52
Q

contusion

A

an accumulation of blood in the tissues outside the blood vessels

53
Q

cyanide

A

consists of carbon and nitrogen; acts primarily on the enzymes of the mitochondria of the brain

54
Q

diatoms

A

small unicellular organisms found in most fresh and salt waters

55
Q

equivocal death

A

inquiries that are open to interpretation

56
Q

hyperthermia

A

body temperature that is higher than normal

57
Q

hypothermia

A

body temperature that is lower than normal

58
Q

questionable death

A

a death that was not witnessed

59
Q

hyoid bone

A

small horseshoe-shaped bone found in the neck near the base of the jaw

60
Q

hematoma

A

a blood tumor

61
Q

naïve consumers

A

a person who does not ingest large amounts of drugs or alcohol

62
Q

ligature

A

an object such as a blue, rope, or cord that is wrapped around the throat to cause asphyxia

63
Q

manual strangulation

A

use of hands to strangulate

64
Q

oxyhemoglobin

A

the form of hemoglobin that is bound with oxygen