Flashcards in Chapter 15: Fire Investigations Deck (64)
A ___________ is an individual who has demonstrated the skills and knowledge necessary to conduct, coordinate, and complete investigation.
The __________ is the area where the ignition source and material first ignited and actually came together.
Area of origin
To determine the area of origin, you must work from the ______ damaged area to the ______ damaged area.
What 3 things are critical to the overall success of the investigation process?
Securing the scene
Noting initial seen observations
What is the 1st step in determining the area of origin?
Examining the exterior of the structure/vehicle and the surrounding area
What is the 2nd step in determining the area of origin?
Examining the interior of the structure/vehicle
What is the 3rd step in determining the area of origin?
Interviewing witnesses/first responders
What is the 4th step in determining the area of origin?
Analyzing the information gathered using the scientific method
_______, _______ and ________ from the interior of the building or ignition points on the outside can cause exterior fire damage.
Products of combustion
Fire suppression efforts
Fire patterns are formed on interior surfaces of the structure as a result of _______ or ________.
Direct flame contact
Exposure to heat
______, ________, or ______ can be the heat transfer method that causes a fire pattern.
On _________, patterns may cause surface discoloration, spalling, melting, or distortion.
This fire pattern is created as a result of the plume of hot gases rising above an individual fire.
This fire pattern occurs when radiant heat forms in the hot gas later during a fire before flashover.
This fire pattern can vary widely in appearance and was created by ventilation introduced to a fire.
This fire pattern occurs after flashover or after a fire has burned for long periods of time, in which almost all vertical and horizontal surfaces in the compartment will show signs of damage.
This fire pattern is found on combustible surfaces were there has been direct contact with or intense radiant heat. It burns away any accumulated soot or smoke deposits on the surface, leaving demarcation lines.
These fire patterns were created when structural components such as wood studs or trusses are exposed to flame.
Pointers or arrows
This fire pattern has no common shape in which the fire followed the path of available fuels.
Irregular patterns on floors
This is the result of fire burning down word through the floor surface above the joist.
These are on the image surfaces resulting from objects shielding the surface.
A company officer must request a fire investigator if: (3)
Loss of life
High content loss
Indication that the incident was intentional or malicious
Measurable and visual damage from the fire, combined with the patterns created from the various heat sources involved retell the ________.
History of the fire
Proper _________ is critical to any criminal or civil legal case.
Evidence chain of custody, complete interview reports, photographs, and certified original copies of documents must be gathered and recorded into an _________.
Incident investigation report
Vehicle fire scenes can be divided into three areas of examination:
The scene around the vehicle
Exterior of the vehicle
Interior of the vehicle
Vehicle fire scene can further be divided to make documentation analysis easier: (3)
Company officers should also determine and document the vehicles _________ when it burned. It will assist you in understanding the fire patterns.
Re-solidified ________ can determine the vehicle's rest angle.