問題一覧
1
In the triangle of fire what are the three elements
tempature, fuel, oxygen (oxidizing agent)
2
What are the two tempatures to start and maintain a fire
fire point, flash point
3
What is flash point
tempature to start a fire
4
What is fire point
tempature to maintain fire
5
What happens to fuel
it is consumed
6
What kind of element is fuel (solid, liquid, gas)
anything
7
If you cut access to fuel, what will happen to the fire
it will stop
8
What does an oxidizing agent do (electron wise)
makes loss of electrons because it accepts electrons
9
What is the thing being oxidized
the element consumed by the oxidizing agent
10
What does oxygen do
oxidization
11
What happens to the oxidizing agent when it makes loss of electrons
it gets reduced
12
What does this make the pipe
means pipe is reducing element
13
So the oxidizing agent
takes electrons and becomes reduced
14
If oxidation is loss of electrons then reduction is
gain of electrons
15
What are the reagents of a combustion reaction (the beginning)
tempature, methane (fuel), oxygen
16
What are the products of a complete combustion reaction
co2 and water
17
What are the products of an incomplete combustion reaction
carbon monoxide, water, and sometimes co2
18
Why is carbon monoxide important to know for a fire investigation
it is undetectable, usually kill’s people in fires
19
Types of fire
burning or flaming (the house flaming), smoldering (coal)
20
What is the difference between smoldering fire and burning or flaming
the difference is access to oxygen
21
Point of origin of a fire
where all 3 elements meet and fire begins
22
Fire progessiom stages
incipient, emergent smoldering, free burning, oxygen related smoldering (backdraft)
23
What is flashover
growth of fire
24
Backdraft
the fire meets oxygen and it wakes up, it looks like an explosion
25
Who determines the point of origin, and everything along the fire investigation
fire squad
26
What is the area of origin
a classroom
27
What is the point of origin
the outlet
28
What are fire causes
natural, accidental, undetermined, incendiary (arson)
29
How is cause of death and manner of death different
cod: strangling, bullet wound, etc. Mod: homicide, suicide, accidental, undetermined, natural
30
Signs of fire
charring or char, char gauge, ceiling damage.
31
Where direction does fire go in
up
32
What is the headspace used for
presence of accelerant
33
What is a sign of arson
multiple origins
34
What is a sign of arson
fire trial/rundown
35
What is a sign of arson
accelerant in debris
36
What is a sign of arson that can be misleading
evidence of accelerant in smoke
37
Fatal fire investigation is the person alive or dead
Alive
38
What is the scale used to determine the burns on dead people
crow-glassman scale
39
What is the 1st degree reminiscint of
sunburn
40
At what level (dead) can you not recognize a body anymore (according to the crow-glassman scale)
4
41
What is the level 5 of the crow glassman scale
cremation
42
Can you feel a third degree burn
no
43
What is the progression of fire
point of origin, it doesn’t stay high usually this because fuel is no longer there
44
What are the goals of csi
not to solve crime. go on the scene, collect and document evidence.
45
What are the steps of CSI
receives call from police arrives on the scene secures scene makes notes of potential evident (no touching) documnes scene with photos and sketches touch stuff, collecting all potential evidence crime lab processes some of the evidence collected results go to the detective
46
What is a crime scene
physical location in which a crime has or is suspected of occurring
47
What is a suspect
thought to be capable of committing a crime
48
Accomplice
associated with someone suspected of committing a crime
49
What is a Primary crime scene
original location of a crime or accident
50
What is a secondary crime scene
an alternative location where additional evidence may be found
51
What are the steps of CSI
first responders if there is a scene for csi then they get called to come in secure the scene with tape (anything outside is not evidence) pictures (out to in, top to bottom, left to right)
52
What is the importance of evidence
can prove that crime has been committed or not
53
Does the CSI talk to detectives or witnesses.
no
54
What does csi do at the scene
collect evidence with team
55
Who gives the warrant
the judge
56
When do you not need a warrant
when there is probable cause
57
Can you touch a body as CSI
no
58
If there is a body who do you call
medical examiner
59
If there is evidence in the mouth of the victim, can you collect it
no
60
Who works with bugs
entomologists
61
Who works with bones
anthropologists
62
How do you retrieve a victim
collect body, put in bag, 4c fridge temp,
63
If you need an autopsy do you freeze the body
no
64
How long does an autopsy take
2-8 hours
65
What happens in an autopsy
remove organs and weigh them, put them back
66
Who is asked to determine the time of death
pathologists
67
How can a pathologist determine the time of death
through bugs and maggots and the process of decomp
68
What are the stages of decomp
fresh stage. bloating stage, decay, active decay, skeletal
69
What are the three phenomenon that occur during the fresh stage
rigor mortis, algor mortis, livor mortis
70
What is rigor mortis
the stiffness of the body (starts and then stops)
71
What is algor mortis
cold and temp decrease
72
What is Livor mortis
discoloration
73
In what stage are maggots present
the bloating stage
74
What is the first part of the body eaten by maggots
the head
75
What are the steps for evidence collection (documentation)
pictures and notes (insects, temp, everything in general) collect live insects (what flies away and then what doesn’t) then collect what doesn’t move
76
What is one thing you should do when arriving at the scene
find the way in or out, communicate to people in your team about how the body was found and what they did already
77
After approaching the scene what do you do
you find the structure
78
How do you take pics of a crime scene
you do a walkthrough. broad to all the way in
79
Is all photography collected and used
yes
80
When documenting there should be
data log sheets to document things quickly
81
What do the notes reflect
what is on the pictures
82
Can things be highlighted in the notes or pictures
yes things like relevant elects, highways etc/
83
After the documentation is secured can you go back in
no
84
When taking notes or photos of the insects what do you do
you measure it with a scale for the picture
85
When you use a scale in the picture this should show up in the
notes
86
Why is tempature important to collect
to know the time of death
87
What is a phrase used to do temp measurements
a growing boy usually makes steaks
88
“A growing boy usually makes steaks” what does this mean
ambient, ground, body surface, underbody, maggot masses, soil temp (where the body was and far away from it)
89
If a body is in water can you use the phrase
no
90
Everything in evidence needs
labels
91
If there is no label on presumptive evidence, will it be considered evidence
no
92
What should a label contain
case #, sample #, the date and time (military styles, content (what is in the bag)
93
A label should be written in
pencil
94
Why should a label be written in pencil
so it doesn’t smudge
95
When on the scene should you just look in one direction
no, multiples directions, and all around a distance about. meters
96
When it looks like a body has been dragged can we conclude it was someone who did it
no it can be maggot masses
97
When collecting maggots do you put them all in one cup
no different cups depending where they were found
98
What is TOC
time of colonization
99
What is PIA
period of insect activity
100
How do you contain a maggot
container with breathable lid, beef liver, sand or soil so they are dry