In most jurisdictions, I have the legal responsibility for determining fire cause
The Fire Chief
Where to begin the search for the area of origin of a structure fire.
On the exterior of the structure.
White ash is a good indicator of this.
More Complete Combustion
A gas can is an example of this primary classification of evidence.
Physical Evidence
Fires that occur as a result of an unsafe behavior are classified as ______.
Accidental
"She was a fast machine"
AC/DC - Shook me all night long
In most cases, we have the best opportunity for observing odd or suspicious conditions
The First Arriving Unit/FF's
Depth of Char is the common indicator of this
Point of origin in a structure fire.
Unburned fuel is most likely to be found in the area of origin of this type of fire.
A Ground Cover Fire
Firefighters discarding cigarette butts into debris at a fire scene is an example of evidence _______.
Contamination
A fire set by someone who knows that the fire should not be set is classified as __________
Incendiary
"Blue jean baby, L.A. Lady"
Elton John -
Tiny Dancer
During Overhaul this should mostly be your primary consideration.
Taking care to preserve evidence
Multiple points of origin are good indicators of this.
Arson/Intentionally set fire
Burnt grass that is found to have fallen in a particular direction indicates this.
The direction the fire came from.
The term for evidence that is not preserved by someone who has the responsibility to do so.
Spoliation
A fire caused by a lightening strike is classified as __________.
Natural
"Up in the club, we just broke up I'm doing my own little thing"
Beyonce -
Single Ladies
After firefighters have left a fire scene, three ways to re-enter the premises.
1. Exigent Cirum. Re-Kindle
2. A Warrant
3. Permission
This is when firefighters should start gathering information about the behavior of a fire.
While en route to the incident.
In a structure fire, the burn pattern at the point of origin tends to be __________.
Generally Upward
Name for product that has enough heat energy and remains in contact with the fuel long enough to raise it to its ignition temperature.
A Competent Ignition Source
This document ensures the integrity of a piece of evidence removed from a fire scene.
Chain of Custody
A fire caused by an overloaded electrical circuit is classified as __________.
Accidental
"Fill up my cup, mazel tov, Look at her dancin', just take it off"
Black Eyed Peas -
I Gotta Feeling
During a fire investigation, it should be assumed that dangerous concentrations of this gas are present in addition to CO
Hydrogen Cyanide
The area of origin contains the fuel source and this.
The ignition source
Three essential characteristics of a material first ignited.
Sufficient Temperature
Sufficient Heat Energy Transfer
Sufficient Time
This type of evidence relies on inference based on direct evidence.
Circumstantial Evidence
When sufficient cause cannot be determined to a reasonable degree, fire is classified as ________.
Undetermined
"And when the night is cloudy, there is still a light that shines on me"
The Beatles -
Let it Be