John Barnett is a Senior Forensic Document Examiner at the Homeland Security Investigations Forensic Laboratory. His primary duties involve the examination of travel and identification documents to determine authenticity and reveal alterations. He is also the training officer for all incoming forensic document trainees. He has testified as an expert witness in the field of Questioned Document Examination on numerous occasions and has given several presentations on the detection of counterfeit and altered travel documents in both international and domestic settings. He possesses a graduate degree in Forensic Science from Oklahoma State University and a bachelor’s degree in from Niagara University. John has been a diplomate of The American Board of Forensic Document Examiners since 2008 and is a member of the American Academy of Forensic Sciences. Prior to his time as a document examiner, John was an Immigration Inspector with U.S. Customs and Border Protection.