Katherine Koppenhaver
— Forensic Document Examiners, Inc.

Katherine Koppenhaver has an international clientele in the field of questioned documents. She reviews documents to determine authenticity, provides oral and written reports and supports her opinion with expert testimony in court and depositions.  She provides second opinions to her peers. She conducts non-destructive testing on documents . She has worked on a variety of types of cases including medical malpractice cases, last will and testament cases, suspicious contracts, graffiti, anonymous notes and letters, industrial espionage, any case in which there is a question about a document. Katherine has authored The Attorney's Guide to Document Examination and Forensic Document Examiners, Principles and Practice. Katherine was  certified by the Board of Forensic Document Examiners from 2004 to 2014.  She is currently certified by the International Association of Document Examiners. She is the founder of the International Association of Document Examiners.  The organization has about 40 members from 9 countries.