When it comes to fire forensics, 33-year Vallejo resident John DeHaan, literally wrote the book — the textbook that is most used nationwide by those going into the field of arson investigations.
Basically, DeHaan is a real Sherlock Holmes, surrounded by books, pamphlets and plaques, in his unassuming offices on Georgia Street downtown Vallejo. DeHaan, whose name is followed by an alphabet soup-full of letters designating achievements and certifications, co-authored several editions of Forensic Fire Scene Reconstruction, as well as Kirk’s Fire Investigation, “the leading textbook in the field of fire and arson investigation,” according to bradybooks.com.