Upside down watermarks
A business owner provided handwritten documents written over a period of time to prove that he had not discriminated against an employee. Five of these documents were on watermarked, yellow-lined notebook paper. The watermarks were upside down. An independent investigation revealed that the company had inadvertently printed the watermark upside down on one occasion 15 years prior and another time shortly before the business owner’s deposition. The submitted pages were dated over a year’s time. |
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Secondary impressions
The results of a scientific research project of critical indented writing impressions showed conclusively that the impressions were “secondary” rather than primary impressions and this evidence proved that the doctor had not altered the medical records. The results of this research were presented at the 1999 meeting of the International Association of Forensic Sciences
(abstract) and published in the 2001 Journal of Forensic Document Examination. |
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Signatures of persons diagnosed with Parkinsonism and hepatic encephalopathy
A study with Carl E. Anderson, M.D. explored the differences in signatures between persons diagnosed with parkinsonism and hepatic encephalopathy. Parkinsonism is well researched and has predictable effects on handwriting. Hepatic encephalopathy related to bile duct obstruction does not. George Posner, Ms. Fisher’s mentor, was diagnosed with pancreatic cancer. He permitted her to use of his signatures for research after his death. The results of this study were published in the 2000 Journal of Forensic Document Examination. |
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