The IAAI and CFITrainer.Net present these podcasts with a focus on issues relating to fire investigation. With expertise from around the world, the International Association of Arson Investigators produces these podcasts to bring more information and electronic media to fire investigators looking for training, education and general information about fire investigation. Topics include recent technologies, issues in the news, training opportunities, changes in laws and standards and any other topic that might be of interest to a fire investigator or industry professional affected by fire. Information is presented using a combination of original stories and interviews with scientists, leaders in fire investigation from the fire service and the law enforcement community.
Welcome to IAAI’s November 2010 CFITrainer.Net Podcast. This month, we’re taking a closer look at the findings of research from Underwriters Laboratories into the structural stability of engineered lumber in fire conditions. In our news section, we’ll talk about two items: the NFPA Standards Council ban on antifreeze in residential sprinkler systems and the National Highway Traffic Safety Administration's investigation into Jeep Grand Cherokee fuel tanks. Let’s get started.
How homes are constructed is changing as the industry moves away from solid timber toward lighter weight materials and engineered lumber. These new construction materials and techniques are coming under increasing scrutiny for how they behave during a fire, which in many cases differs from performance of past products and methods. UL has released its findings from research into the structural stability of engineered lumber in roof and floor designs and lightweight trusses when these materials are subjected to fire conditions. The key findings affecting fireground safety are:
Not only does this research have significant fire scene safety implications for fire investigators, but the difference in behavior of these lightweight materials also impacts the interpretation of fire damage and burn patterns, especially when ventilation is affected by failure and collapse. This research was funded by The U.S. Department of Homeland Security Assistance to Firefighters Grant and conducted in collaboration with the Chicago Fire Department, Michigan State University, and the International Association of Fire Chiefs. For more information, please use the link provided on this podcast’s page.
Now, we turn to news items making headlines in the industry.
The NFPA Standards Council has banned the use of antifreeze in new residential sprinkler system installations until further action by NFPA consensus standards committees. The incident that raised the question of the flammability of antifreeze in the sprinkler system was a fatal grease fire in a kitchen where a sprinkler with a high concentration of antifreeze deployed. The report concluded that antifreeze solutions with concentrations of propylene glycol exceeding 40% and concentrations of glycerin exceeding 50% have the potential to ignite when discharged through automatic sprinklers. This safety alert, issued in late August, also included information on how to retro-equip existing sprinkler systems to mitigate the flammable antifreeze problem. More information is available on NFPA.org.
The National Highway Traffic Safety Administration has opened an investigation into the placement of the fuel tank in Jeep Grand Cherokees manufactured between 1993 and 2004. Jeep Grand Cherokees of this vintage have a fatal fire rate that is six times higher than newer Grand Cherokee models and four times higher than other sport-utility vehicles. As many as three million vehicles could have fuel tanks that are prone to rupture during a rear-end collision, thus posing a fire risk. The placement of the tank behind the rear axle and below the back bumper is the issue.
Finally, we close with news from IAAI.
The International Association of Arson Investigators held a "beta test" of the IAAI’s new Evidence Skills Practicum with the Washington, DC Fire Department last week. The practicum is designed to test investigators in person to see what they have learned online through www.cfitrainer.net evidence modules, in the classroom and on the job. Working in front of evaluators in the investigation field, the participants were tested on table tops with evidence mock-ups designed to re-create scenarios often seen in the field. The evidence collection and preservation skills that were tested re-enforced the cognitive learning that had already been completed by the students. Using skill sheets the evaluators observed the fire investigators as they performed tasks to document, collect and preserve typical fire scene evidence. The lead developers of the practicum, Dan Heenan and Kirk Hankins were thrilled with the results. The Washington DC Fire Department contributed the location, support and participants that helped the IAAI learn from the beta test. The plan is to roll out the Evidence Skills Practicum program around the country in 2011.
That concludes this IAAI CFITrainer.Net podcast. Don’t forget to check out the links on this podcast’s page for more information on all of our stories. We’ll see you again next month.
This program provides a primer on accreditation, certification, and certificates for fire investigation training.
A fire occurred on the night of Feb. 20, 2003, in The Station nightclub at 211 Cowesett Avenue, West Warwick, Rhode Island.
Arc Mapping, or Arc Fault Circuit Analysis, uses the electrical system to help reconstruct a scene, providing investigators with a means of determining the area of a fire’s origin.
This module introduces basic electrical concepts, including: terminology, atomic theory and electricity, Ohm’s Law, Joule’s Law, AC and DC power.
A fire occurred on the evening of June 18, 2007, in the Sofa Super Store in Charleston, SC that resulted in the deaths of nine fire fighters.
This module looks at the many ways fire investigators enter and grow in the profession through academia, the fire service, law enforcement, insurance, and engineering.
This module will present a description of the IAAI organization.
This module takes a closer look at four of the most commonly-reported accidental fire causes according to "NFPA Fact Sheet.
This program brings three highly experienced fire investigators and an attorney with experience as a prosecutor and civil litigator together for a round table discussion.
The program discusses the basics of digital photography for fire investigators as well as software and editing procedures for digital images intended as evidence.
This self-paced program is an introduction to discovery in civil proceedings such as fire loss claims and product defect lawsuits.
This self-paced program is an introduction to discovery in criminal proceedings.
This module covers the foundation of DNA evidence: defining, recognizing, collecting, and testing.
This program provides a practical overview of how to perform the baseline documentation tasks that occur at every scene.
This module will discuss the techniques and strategies for conducting a proper science-based fire scene investigation and effectively presenting an investigator’s findings in court as an expert witness.
This module presents critical electrical safety practices that every fire investigator should implement at every scene, every time.
This self-paced program examines the fire investigator's ethical duties beyond the fire scene.
As social media has emerged as a powerful force in interpersonal communications, fire investigators are being confronted with new questions...
Should you work for a private lab as a consultant if you are on an Arson Task Force? How about accepting discounts from the local hardware store as a “thanks” for a job well done on a fire they had last year?
This module takes investigators into the forensic laboratory and shows them what happens to the different types of fire scene evidence that are typically submitted for testing.
This module teaches the foundational knowledge of explosion dynamics, which is a necessary precursor to investigating an explosion scene.
This module addresses the foundations of fire chemistry and places it within the context of fire scene investigations.
The program is designed to introduce a new Palm/Pocket PC application called CFI Calculator to users and provide examples of how it can be used by fire investigators in the field.
This module examines these concepts to help all professionals tasked with determining fire origin and cause better understand fire flow dynamics so they can apply that knowledge to both to fire investigation and to fire attack.
This module provides a road map for fire officers to integrate and navigate their fire investigation duty with all their other responsibilities and describes where to obtain specific training in fire investigation.
The evaluation of hazards and the assessment of the relative risks associated with the investigation of fires and explosions are critical factors in the management of any investigation.
This module will describe the most commonly encountered fire protection systems.
This module presents best practices in preparing for and conducting the informational interview with witnesses in the fire investigation case.
This module provides instruction on the fundamentals of residential building construction with an eye toward how building construction affects fire development.
This module teaches first responders, including fire, police and EMS, how to make critical observations.
This program discusses how to access insurance information, understand insurance documents, ask key questions of witnesses, and apply the information learned.
This module offers a basic introduction about how some selected major appliances operate.
This program introduces the fire investigator to the issues related to the collection, handling and use of evidence related to a fire investigation.
This program takes you inside the National Institute of Standards and Technology (NIST) archives of some of the most interesting and instructive test burns and fire model simulations they have ever conducted.
The program provides foundational background on the scope of the youth-set fire problem, the importance of rigorous fire investigation in addressing this problem, and the role of key agencies in the response to a youth-set fire.
This module provides a thorough understanding of the ways an investigation changes when a fire-related death occurs.
This self-paced program will help you understand what to expect at a fire where an LODD has occurred, what your role is, how to interact with others, and how to handle special circumstances at the scene.
This program will introduce the fire investigator to the basic methodologies use to investigate vehicle fires.
This module presents the role natural gas can play in fire ignition, fuel load, and spread; the elements of investigating a fire in a residence where natural gas is present; and the potential role the gas utility or the municipality can play an investigation.
This self-paced program covers fundamental legal aspects of investigating youth-set fires, including the juvenile justice system, legalities of interviews and interrogations, arson statutes, search and seizure, and confidentiality.
This program discusses the latest developments in expert testimony under the Daubert standard, including the MagneTek case recently decided in the United States Circuit Court of Appeals.
This module focuses on how to manage investigations that have “complicating” factors.
This module uses the Motive, Means, and Opportunity case study to demonstrate how responsibility is determined in an arson case.
This program covers the general anatomy of a motor vehicle and a description of typical components of the engine, electrical, ignition, and fuel systems.
This self-paced program is the second part of a two-part basic introduction to motor vehicle systems. This program describes the function and major components of the transmission, exhaust, brake, and accessory systems.
This module educates the investigator about NFPA 1033’s importance, its requirements, and how those requirements impact the fire investigator’s professional development.
This module reviews the major changes included in the documents including the use of color photos in NFPA 921 and additional material that supports the expanded required knowledge list in NFPA 1033 Section 1.3.7.
The program illustrates for the fire investigator, how non-traditional fire scene evidence can be helpful during an investigation.
This module introduces the postflashover topic, describes ventilation-controlled fire flow, illustrates how the damage left by a postflashover can be significantly different than if that fire was extinguished preflashover.
This module lays the groundwork for understanding marine fires by covering four basic concepts that the investigator must understand before investigating a marine fire.
In this module, you will learn more about how cancer develops, what occupational exposure risks to carcinogens exist at fire scenes, and how to better protect yourself against those exposures.
The use of the process of elimination in the determination of a fire cause is a topic that has generated significant discussion and controversy in the fire investigation profession.
This module teaches the basics of the electrical power generation, distribution, and transmission system.
This module presents the basics of natural gas and its uses and system components in a residence.
This module explains the principles of search and seizure under the Fourth Amendment, as contained in the amendment and according to subsequent case law, and applies them to typical fire scene scenarios.
One of the legal proceedings that may require the fire investigator to testify is a deposition. Depositions are often related to civil proceedings, but more and more jurisdictions are using them in criminal cases.
Deposing attorneys employ a variety of tactics to learn about the expert witness giving testimony, to try to unsettle that witness to see how he/she handles such pressure, and to probe for weaknesses to exploit.
This module provides introductory information on the Hazardous Waste Operations and Emergency Response (HAZWOPER) standard – 29 CFR 1910.120.
The program examines the importance of assessing the impact of ventilation on a fire.
This module demonstrates the investigative potential of information stored on electronic devices.
This module explains the relationship between NFPA 1033 and NFPA 921
The basics of the scientific method are deceptively simple: observe, hypothesize, test, and conclude.
This module addresses the foundations of thermometry, including the definition of temperature, the scales used to measure temperature and much more.
This program presents the results of flame experiments conducted with a candle.
This self-paced program explains to non-investigators the role of the fire investigator, what the fire investigator does, how the fire investigator is trained, what qualifications the fire investigator must meet.
This module will untangle the meanings of "undetermined," straighten out how to use the term correctly, talk about how not to use it, and describe how to properly report fires where "undetermined" is the cause or classification.
This module will advise fire investigators on how to approach the fact-finding procedures necessary and validate a hypothesis.
This module provides an overview on how structures can become vacant and eventually abandoned.
This self-paced program provides a basic framework for structuring the management of fire cases and fire investigators.
This module illustrates how wildland fires spread, explains how to interpret burn patterns unique to these types of fires.
This module presents the key elements of the initial origin and cause report and methods of clearly presenting findings in a professional manner.