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CIB 012 - Arson > Fire and Explosive Investigations > Flashcards

Flashcards in Fire and Explosive Investigations Deck (19)
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External Scene Examination

- What distance debris was scattered
- Adjoining premises (often reveal forced entry, etc)
- Nearby alleyways / streets / driveways
- The yards and outbuildings of the effected property

- The periphery of the structure itself
- Any signs of forced entry
- Patterns (burn) above doors and windows


Preliminary Internal Examination

- Signs of hardship
- Owner / Occupier attitude during walk through
- Burn pattern
- Unusual odour
- Rifled premises

- Missing photographs / personal items
- Position of Clothes if not in drawer


Detailed Internal Examination

- Damage to wall studs
- Damage to roofing timbers
- Damage to windowsills and door edges (jemmy's)

- Smoke deposits and burn patterns
- Underfloor inspection


Section 28 (4) Fire Service Act 1975


- Buildings Blazing, may enter private property when alight or is endangered or when entry is essential to perform a necessary duty.

- Interfering or endangered persons may be removed with force if necessary.

- Vehicles which are impeding the fire service can be moved. If necessary, break into the vehicle for that purpose.

- Anything else that is "reasonably necessary" for the protection of life and property.

- Close roads and highways if required.


Initial Action at an Arson scene

- Briefly interview the informant
- Secure the scene

- Interview incident controller and OC Fire
- Fire is extinguished, ensure safety of the scene

- Initial interview of the fire investigator

- Preliminary scene examination
- If deemed serious, regroup and give briefing
- Staff, confer with staff and delegate tasks
- Sitrep with Comms


Fire Investigation Liaison Officers Role

- Attend every fire that results in serious injury or death

- Coordinating fire investigations in their districts
- Arranging Police attendance at fire scenes(when required
- Maintaining working relationships with Fire
- Enquiries, Assist with fire related enquiries
- Local training, regarding fire investigation


Scene Interviews, Who?

- Informant
- Fire Fighters

- Occupants and visitors
- Neighbours
- Employees

- Passer-by's
- Incident Controller


Explosions, what to look for

- Cratering
- Almonds, a peculiar smell
- Spread of debris

- An overlay of dust
- Shrapnel marks
- Shredding of Materials


Interview of Incident Controller

- Time and Date of 111 call
- Appliances that attended
- State of the fire

- Building Security
- Action the fire service has taken (ventilation etc)
- Suspicious, why?

- People or vehicles acting suspiciously
- Opinion of the informant
- Scene alterations made


Common Methods of setting fires

- Candles
- Chemical Igniters
- Electrical Apparatus
- Electric Matches
- Matches and Cigarettes
- Molotov Coktails
- Trailers
- Timing Devices


Suspect Motives

- Profit
- Fraud
- Pyromania
- Jealousy


Specialist Fire Investigator and Fire Liaison Officer

Discuss four matters

- Handover of the fire scene
- Access to the fire scene
- Process for investigation and examination
- Identification / collection of evidence at the scene


Legally you may set fire to your own property unless...

(three reasons)

- Intend to cause loss to someone else as result of fire
- Know / ought to know that the fire will endanger life
- know that the fire is likely to damage someone else's property as a consequence


Matters in determining the seat of the fire...

- Witness reports
- Wind direction
- When and where they first noticed the fire

- Depth of charring
- Opinions from other specialists
- Severity of the damage


Suspect Enquiries

- Forensic (fingerprints)
- Information from witnesses
- Resources such as Intel, Youth Aid
- Enquiries at Prisons, Psych Hospitals


Carelessness that may result in fire...

- Misusing electricity
- Ironing
- Setting off Fireworks
- Children playing with matches
- Clothes left near heater


How to establish if a Fire has been deliberately lit

- Evidence of accelerants
* Uneven burning
* Multiple seats of fire
* Smell

- Evidence of intentional interference
* Signs that windows were opened to create a draught
* Intentional removal of valuable property
* Rearranged furniture to create a fire base


Natural causes of fire

- Chemical Reactions
- Lightning
- Static Electricity
- The suns rays
- Rodents chewing through wire


Preliminary interview with the owner, find out..

- When the business was last secured
- Type of business
- Actions leading up to the fire
- Details of any suspects and insurance
- Whether he or she knows the cause