John DeHaan

John DeHaan has over 42 years of experience in fire- and explosion-related forensic science and has been deeply involved with improving fire investigation. After earning his BS (physics 1969), he spent 29 years with public forensic labs. He has authored six editions of Kirk’s Fire Investigation since 1982 and was co- author with David Icove in Forensic Fire Scene Reconstruction since 2004. Since 1999, he has been president of Fire-Ex Forensics, Inc., a private consulting firm that provides services to police and fire agencies, public defenders, private attorneys and insurers in fire and explosion cases across the US and internationally.