Your key to mastering the 2004 edition of NFPA 921! Need clarification on the latest guidance for interpreting inverted cone patterns? Want more information about new and revised provisions for using digital photos? Turn to this Second Edition of User's Manual for NFPA 921 for authoritative insights into the latest guidelines for every aspect of the investigation process. Fully updated to correlate with the 2004 NFPA 921: Guide for Fire and Explosion Investigations, the Manual is written by the International Association of Arson Investigators and published by NFPA. Many of the contributors are current or former members of the NFPA 921 Technical Committee as well as members of IAAI, so you know it's guidance you can trust. Gain the expert support you need and apply today's fire investigation best practices with User's Manual for NFPA 921.