Book excerpt: Scientific Protocols for Fire Investigation, Third Edition focuses on the practical application of fundamental scientific principles to determine the causes of fires. Originally published in 2006, the First Edition was very well received by fire investigators and those who work with them. Since fire investigation is a rapidly evolving field—driven by new discoveries about fire behavior—the Second Edition was published in late 2012. This latest, fully updated Third Edition reflects the most recent developments in the field. Currently, serious research is underway to try to understand the role of ventilation in structure fires. Likewise, there is improved understanding of the kinds of errors investigators can make that lead to incorrect determinations of the causes of fires. In addition to the scientific aspects, the litigation of fire related events is rapidly changing, particularly with respect to an investigator's qualifications to serve as an expert witness. This book covers these latest developments and ties together the changing standards for fire investigations with the fundamental scientific knowledge presented in the early chapters of the book. The book is intended for those individuals who have recently entered the field of fire investigation, and those who are studying fire investigation with a plan to become certified professionals. In addition, professionals in the insurance industry who hire fire investigators will find this an invaluable resource. Insurance companies have sustained significant losses by hiring individuals who are not qualified, resulting in cases being settled or lost at a cost of millions. Insurance adjusters and investigators will learn to recognize quality fire investigations and those that are not up to today's standards. Lastly, this book is also for the many attorneys who litigate fire cases. Written with language and terms that make the science accessible even to the non-scientist, this new edition will be a welcome resource to any professional involved in fire and arson cases.