The role of first respondents in fire investigation
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Transcript of The role of first respondents in fire investigation
THE ROLE OF FIRST RESPONDENTS IN FIRE INVESTIGATION
ADO II KPAJAL DANIEL
@
A ONE DAY WORKSHOP FOR OPERATION AND DUTY OFFICERS
CONTENTIntroductionobjectivesPre-fire fighting assessmentEvidence identificationPreservation of evidenceWitnesses Summary
INTRODUCTIONThe Ghana National Fire Service (GNFS) is the sole agency mandated by law to prevent, combat and establish the cause of fires in the country.Unfortunately, very little training and logistics are assigned for fire investigation purposes.Consequently, the Service has come under incessant criticism for its failure to effectively investigate and establish the cause of major fires in the country.The problem in the Brong Ahafo Region is not any different
OBJECTIVESAt the end of this presentation, course participants will be able to:Appreciate their role in the fire investigation processEffectively conduct a pre-fire fighting incident assessmentIdentify evidence and learn ways of protecting themImprove upon their witness handling skills
SCIENTIFIC FIRE INVESTIGATION MODEL
PRE-FIRE FIGHTING ASSESSMENTOn arrival at an incident scene, the Incident Commander (Duty Officer) must quickly conduct an assessment of the incident by doing the following:Find out if there are trap victimsSize-up the incidentObserve the wind directionIdentify hazards Read fire behavior indicators
C’tdAssess forcible entry requirementsExamine the roofing typeUnderstand crew’s tactical assignment Identify potential emergency escape routesMaintain high level of situation awarenessVerify that communication gadgets are working
Take Note!!!If door to fire area must be opened, all members should stay low and to one side of doorwayCheck door for heat before openingStart fire fighting from unaffected areas to prevent the fire from spreading to such areas.Avoid multiple commands and instructions
EVIDENCE IDENTIFICATIONEvidence at a fire scene relates to both material and non material elements that aids in the fire investigation process or the establishment of cause and motive of a fire. It may include such things as petrol cans, matches box, streamers, movements of people, etcFire respondents play a very significant role in evidence identification and destructionTo aid the investigation process, first respondents must
C’td. Enrout to the incidentFirst respondents must note theTime of day Weather and natural hazards Barriers People leaving the scene
C’td: Upon arrival First-Arriving Firefighters should note theTime of arrival and extent of fire Wind direction and velocity Doors or windows locked or unlocked Location of the fireVehicles and people present in the areaStatus of doors and windows Smoke color
C’tdEvidence of forced entry by anyone other than firefightersContents of the roomsIndications of unusual fire behavior or more than one point of origin Containers or cans Burglary tools Familiar faces
C’td: During Fire Fighting Unusual odors Abnormal behavior of fire when water is applied Obstacles hindering fire fighting Incendiary devices Trailers Structural alterations Fire patterns
C’tdHeat intensity Availability of documents Fire detection and protection systems Intrusion alarms Location of fire
Potential Threat to EvidenceFire suppression activities, such as a straight stream applied at the point of origin or deluge applications that may wash away or dilute potential evidence.Overhaul activities that destroy fire patterns.Salvage activities that involve moving or removing potential physical evidence.Use of a tool in any manner that causes destruction of evidence. Movement of knobs, switches, and controls on appliances and utilities.Weather conditions that affect transient evidence (i.e., wind, precipitation, or temperature changes).
C’tdPersonnel walking through the scene.Witnesses and victims leaving the scene. Medical intervention and treatment of victims (e.g., by damaging evidence at the scene or destroying victims’ clothing).Premature removal or movement of bodies.Vehicles at the scene (e.g., that introduce fluid to the scene through vehicle leaks or destroy other evidence, including shoe prints and tire impressions).Contamination from external sources, such as fuel-powered tools or equipment.
EVIDENCE PROTECTIONEvidence must remain undisturbed except when absolutely necessary for the extinguishment of the fireRemove evidence at risk of imminent destruction by the fire or the structural collapse of the damaged building.Limit excessive fire suppression, overhaul, and salvage.Avoid needless destruction of property.
C’tdFirefighters must avoid trampling over possible evidence and obliterating it Preserving transient evidence (e.g., trace evidence, shoe prints, tire impressions).Leave charred documents found in containers Leaving bodies undisturbed.Flag items of evidence with cones or markers.Record observations through written notes or voice recordings.
C’tdRetain and secure clothing items removed from victims and suspects.Obtain information about victims and witnesses (i.e., their names, addresses, and telephone numbers).Ensure that later arriving investigators are fully apprised of the evidence discovered.Cover items or areas containing evidence with objects that will not contaminate the evidence (e.g., clean boxes or tarpaulins).Isolate items or areas containing evidence with rope, barrier tape, barricades, or sentries.
WITNESSESWitnesses are primary source of information and their accounts are key to the investigation processFirefighters should obtain as much information as possible from themOwners or occupants of the property should be allowed to talk freely However, Firefighters should not attempt to interrogate a potential arson suspect unless trained and authorized Firefighters should refrain from expressing personal opinions
OVERHAULINGOverhauling consists of operations involved in searching for and extinguishing hidden or remaining fires at an incident.If possible, do not start overhaul operations until
Fire is under controlFire cause has been determinedEvidence has been identified and protected
continuedBefore overhauling, the following steps must be followedInspect the premisesIdentify hazardsDeveloping operational planEliminating or mitigating hazards Providing tools and equipment
Take Note !!!Indicators of Loss of Structural Integrity during overhauling include:Weakened floorsConcrete that has spalled Weakened steel roof membersWalls offsetWeakened roof trussesMortar in wall joints opened Water pooled on upper floors
SUMMARYBefore an investigation into the origin and cause of a fire can be conducted, there must be evidence to evaluate and first respondents play a critical role in its collection.As a firefighter, one of the most important responsibilities is to avoid disturbing or destroying evidence while fighting the fire. In the area of origin appropriate caution must be used when spraying water, moving debris, and even walking around. Once the area of origin is known, a more thorough investigation can be conducted to determine the exact cause of the fire.
C’tdAs a firefighter, it may be necessary to determine the cause of the fire; more likely, firefighters may be assigned to assist their supervisor or a fire investigator in making that determination. If the fire origin and cause investigation reveals evidence of arson, the property becomes a crime scene and must be treated as one. Firefighters must cooperate fully with whoever is assigned to investigate the crime.