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Investigating forensic document examiners’ skill relating to opinions on photocopied signatures |
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| Authors: | B. Found D.K. Rogers |
| Affiliation: | 1Forensic Expertise Profiling Laboratory, School of Human Biosciences, La Trobe University, Victoria, 3086, Australia and Document Examination Team, Victoria Police, Victoria Forensic Science Centre, Forensic Drive, Macleod, Victoria, 3085, Australia 2Forensic Expertise Profiling Laboratory, Science of Human Bioasciences, La Trobe University, Victoria, 3086, Australia |
| Abstract: | Many forensic document examiners are hesitant to express authorship opinions on photocopied handwriting as the photocopying process results in less feature information than original writing. This study aimed to test the accuracy of 15 examiners' opinions regarding whether photocopied questioned signatures were genuine or simulated. Each examiner received the same set of original signature exemplars, from one individual, and a set of eighty questioned photocopied signatures comprising of genuine and simulated signatures. The overall misleading (error) rate for the grouped examiners' opinions was 0.9% providing strong evidence that examiners can make accurate observations regarding the authorship of non-original handwriting. |
| Keywords: | Forensic science handwriting examination signatures photocopy validation document examiners |
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