Criminal Inv-Chapter 11, Arson,Bombings and Hate Crimes Flashcards Preview

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Flashcards in Criminal Inv-Chapter 11, Arson,Bombings and Hate Crimes Deck (33):
1

fires set by arsonists and explosives placed to damage property and ill or inflict injury on people are

crimes against both person and property

2

who defined arson as the malicious and willful burning of the house or outhouse of another man

18 century British jurist Sir William Blackstone, in his Commentaries on the Laws of England

3

corpus delicti in arson case requires

burning be the result of a criminal agency
that there be actual burning, a consuming type fire

4

Facts that must be proved in any prosecution for arson are

1. Fire occured- a burning, a charring
2. burning was not accidental; result of criminal agency
3. person who appears as a defendant in court in an arson case is identified as the person who set the fire or caused it

5

aggravated arson

explosives are used
people are present at the site or are placed in danger

6

FBI uniform crime report on arson in 2008

62,807 arson cases in US
43.4 % Involving structures
28.9% mobile property
27.7% other types property; crops,timber,fences
average dollar loss $16,000
24.1 per every one hundred thousand inhibitants

7

suspicious fire concept

1.seek evidence to prove the fire was natural or accidental
2. seek evidence to eliminate all possible caused except incendiarism. (evaluate possibilites ofperson smoking in bed, spontaneous compbustions, electrical storms, space heater
3. seek evidence that prove fire was incendiary origin

8

rational motivation fire

based on hate, profit, desire to conceal a crime

9

irrationally motivated fires

are pathological fire setters

10

hate fires

are set because of some dispute.
They have emotional problems.
Religious, racial and political disputes may be involved. The identity of the arsonists or incendiary is not as apparent in these disputes, suspects may be identified in the opposition group involved in the dispute.

11

these fire setters are not difficult to expose once hate as been eliminated as motivation.

for -profit fire setters- inquiry about company insuring building and contents, insurance and record of policyholder.

12

pyromania

obsessional impulse to set fires or a preference for arson as an instrument of damage

13

pyromaniacs

"firebugs", who terrorize entire neighborhoods by setting fires.

14

pathological fire setter

does not have any relationship with victim or place of burning.

15

a "pyro" fore is similiar to a "psycho" murder case in this respect

empty

16

in terms of ignitablility, rate of heat release

combustibility

17

rapid development of the fire that occurs when volume of active fire becomes a significant portion of room volume.

flashover- uninvolved combustibles in a a room suddenly ignite.

18

factors that influence fire patterns in outdoor fires are

wind and terrain

19

major difference between an accidential fire and an incendiary fire is

accidental fires frequently burn themselves out becuase of lack of proper ventilation or combustible material

20

fire-boosting material

or called the plant

21

where a fire was ignited is classified as the

place of origin

22

often used to spead fires from point of ignition

trailers- can be considered a secondary incendiary device. carrying fire from original place of ignition to other parts of room or building

23

an examination and search by firefighters for hidden flames

overhauling

24

passive headspace concentration method

popular method for seperating flammable and combustible liquid residues from fire debris

25

tagging

addition of coded microparticles or taggants to explosives during their manufacture. taggants survive detonation, can be recovered and decoded`

26

when arson cases are prosecuted, these factors are important

motive and opportunity factors

27

Best-case scenario in arson investigation is when the investigator arrives at fire scene while ________

fire is still in progress. Investigator can interview on-scene witnesses and observe fire.

28

natural materials such as wood and grass typically produce what color? and petroleum-based products have ___?

white smoke and petroleum is black smoke

29

Reconstruction of a fire scene requires the investigator to secure data on, three things?

how fire started
how it burned
whether it was accelerated

30

Primary concern with the pattern of a fire:

how it was ignited
point of origin
source and direction of its burning

31

detectors of flammable vapors, "sniffers". operates on the _____ ____ principle

catalytic combustion

32

_________ _______ support the work of fire scene searches by recovering flammable fluids from fire rubble, (wood, cloth and paper)

solvent-extraction devices

33

In photographs of fire scene, what is particular important in revealing any ignition device and use of a fire set with trailers and accelerants

close up photography