Ms. Harralson is the managing partner of Spectrum Forensic International, LLC, a full-time handwriting and document examination practice. She is a court-qualified and board-certified forensic document examiner. Ms. Harralson has lectured extensively to professional organizations and universities on the handwriting sciences. She has published original research in peer-reviewed journals on forensic handwriting and document examination topics. Her publications include Forensic Handwriting Examination of Motor Disorders & Forgery published by VDM Verlag and co-author of a chapter on evidential documents in Crime Scene Investigation published by Elsevier/Anderson Publishing. She has been consulted by attorneys, and public and private clients internationally. She is a board-certified diplomate through the Board of Forensic Document Examiners and the National Association of Document Examiners. She holds a Bachelor of Science in the behavioral sciences, a Master of Arts in handwriting science and forensic document examination, and a forensic crime scene technician certificate.

Gary has held many progressively responsible positions in the United States Air Force, industry and academics. He founded Analytica Systems International in 1981 with the intention of using his diverse knowledge of human factors, ergonomics and safety engineering to proactively improve the human experience in our manufactured environment.

Gary has served as an expert witness in hundreds of litigated matters since he founded ASI. His unique educational and experiential background, combined with his meticulous attention to detail provide ASI's attorney clients with exceptionally high quality reports, qualified expert testimony and effective technical case management.

Gary is the author of several technical papers spanning a variety of fields and he has published a book, Innkeeper's Liability Management, which provides the innkeeping industry with a single source for information on identifying, evaluating and controlling hazards typical to the business of operating a hotel or motel. His book can be purchased from Lawyers and Judges Publishing. His next book will be available in the near future and will be an authoritative treatise on the causes of and preventions for pedestrian falling incidents.

Gary has made many professional presentations, sharing his knowledge of human factors, ergonomics and safety with diverse audiences nationwide.

Gary keeps his knowledge current by teaching a variety of advanced courses in the college of engineering at the University of Arizona.