Arson Investigation
Arson investigation starts with the fire itself. To create and
sustain a fire three factors must be present. The three factors are
known as the fire triangle (Peige ed.,1977). The fire triangle consists
of oxygen, a fuel source, and heat. In most cases the percentage of
oxygen concentration must be above 16% (Peige, ed.,1977). The fuel may
be any flammable substance. The heat source needs only to match the
ignition temperature of the fuel.
In a fire involving arson the arsonist will have tampered with one or
more of the factors in the fire triangle. The arsonist may increase the
fuel load by introducing flammable material or by adding accelerants
such as kerosene, gasoline or alcohol (French, 1979) The arsonist may
increase the oxygen content of a structure by opening windows or
punching holes in ceilings and walls (French, 1979) Fire will follow the
highest concentration of oxygen to its source. By ventilating a
structure at the top and starting a fire at the bottom of the structure
an arsonist can cause the fire to race upward through the structure. The
fire will rapidly involve the whole structure rather than be confined
to one room.
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
Arson Investigation
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