Chapter 7 Flashcards
FOUR GENERAL CLASSES OF FIRE CAUSES
Natural fire
Accident fire
Arson
Unknown fire
Fire cause naturally without human intervention or aid; such as lightning. spontaneous ignition, mechanical malfunctional of equipment.
- Natural Fire
Fire causes where human action is involved directly or indirectly
- Accidental Fire
Fire cause as a result of the wilful and criminal action of some persons.
- Arson
Fires which are not classified as to causes
- Unknown Fire
Three General Classification of Fire
- Innocent Fire
- Incendiary Fire
- Unknown Fire
Basic Steps in a Fire Scene Examination/Investigation:
Search systematically
Observe
Take Photograph
Work by the Process of Elimination
Check and Verify
Take Note
Draw Diagrams
Areas to Conduct Fire Investigation
Exterior
Interior
Debris
Furnishing
Determine where the fire vested first by comparing burn char, smoke, and heat patterns around windows, doors, and roof.
- Exterior
Conduct a cursory examination or general survey of the entire structure of interior for the extent of fire damages Establish y-the class of fire duration and the approximate burn time by checking the following:
Conduct a cursory examination or general survey of the entire structure of interior for the extent of fire damages Establish y-the class of fire duration and the approximate burn time by checking the following:
- Interior
Conduct a detailed search of the debris, examining it layer by layer until the floor is reached.
- Debris
Examine the damaged fumishing such as: upholstered furniture couches, chairs. beds, etc
Furnishings
Types of furnishing.
Upholstered furniture
Television sets and table radios,
Drapes and curtains
Kitchen range
Origin of the fire can also be traced through the so called
FIRE PATTERNS.
Arson Indicators:
Accelerance
igniters
burn indicators