Arson Forensics Flashcards

1
Q

What are the 6 motives for arson HIRVED

A
Hero syndrome 
Insurance fraud 
Revenge 
Vandalism 
Excitement
Destroy evidence
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2
Q

How is arson evidence sealed?

A

With a sealed metal container

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3
Q

What is the first thing that arson investigators do?

A

Find the point of Origin

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4
Q

What is the most common accelerant used

A

Gasoline

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5
Q

What’s the term called when analyzing a chemical sample and providing data to identify a chemical?

A

Gas chromatography

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6
Q

Exothermic reaction

A

Chemical reaction that releases heat

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7
Q

What are the four categories of fire

A

Accidental, natural, deliberate, undetermined

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8
Q

What is an example of a natural fire?

A

Lighting strikes a tree and a forest fire starts

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9
Q

What is an example of an accidental fire?

A

You leave a candle burning which starts a fire

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10
Q

What is an example of a undetermined fire?

A

Investigators cannot determine the the reason of the fire

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11
Q

What is an example of a deliberate fire?

A

Pouring gasoline on the floor and throw a match on it to start the fire

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12
Q

Why do you NOT need a search warrant at a crime scene?

A

The accelerants can vaporize quickly which would destroy the evidence of a possible arson investigation

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13
Q

Accelerant

A

Any material used to start or sustain a fire

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14
Q

Arson

A

The intentional and illegal burning of property

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15
Q

Combustion reaction

A

Oxidation reaction that involves oxygen

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16
Q

Heat of combustion

A

Excess heat that is given off in a combustion reaction

17
Q

Hydrocarbon

A

Any compound consisting only of hydrogen and carbon

18
Q

Oxidation reaction

A

The complete or partial loss of electrons or gain of oxygen

19
Q

Substance control

A

A similar but uncontaminated sample

20
Q

Pyrolysis

A

Decomposition of organic matter by heat

21
Q

What are the 5 most common used accelerants

A
Acetone
gasoline
mineral spirits 
turpentine 
kerosene
22
Q

How many carbons does the prefix meth have?

23
Q

How many carbons does the prefix eth have?

24
Q

How many carbons does the prefix prop have?

25
How many carbons does the prefix but have?
4
26
How many carbons does the prefix pent have?
5
27
How many carbons does the prefix hex have?
6
28
How many carbons does the prefix hept have?
7
29
How many carbons does the prefix oct have?
8
30
How many carbons does the prefix non have?
9
31
How many carbons does the prefix dec have?
10
32
How many bonds does the suffix ane have?
Single bonds
33
How many bonds does the suffix ene have?
Double bonds
34
How many bonds does the suffix yne have?
Triple bonds