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Document%20Voiceprint0

Document%20Voiceprint0 - Questioned Documents(QD-Any object...

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1 Handwriting Comparison Thesis: Unconscious handwriting of two individuals can never be identical To do it well, need sufficient number of exemplars: authentic samples used for comparison purposes Questioned Documents (QD)-Any object that contains handwritten or typewritten markings whose source of authenticity is in doubt. Points of Comparison The “intensity of the hand (ie, pen pressure and perceived speed) Slope of baseline Slant of individual letters / words General angularity / roundness of the hand Shape of individual letters / numbers Distance between letters, words, and lines Margins chosen (left, right, top and bottom) Height and width of general letters What they do with ascenders (letters which reach up) How they dot their i’s and cross their t’s. What they do with the “middle zone” (mid range of all letters) What they do with descenders (letters which reach down) Letter connecting strokes Spelling, punctuation, phraseology, grammar, choice of when to capitalize
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2 Forged signatures from a plot to change the will of William Rice, founder of Rice University He was poisoned with mercury and then chloroform by his valet under the direction of a lawyer hired by over eager heirs and then cremated. Forgery in cremation notice and new will was detected Forged Signature Source: Oxford University Centre for the Study of Ancient Documents; Georgia Bureau of Investigation To detect a forgery, suspect is told to write a fairly long passage or sign name multiple times. Ultimately exhaustion sets in and the true writing style emerges
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3 Forensic examiners testify that Cameron Diaz signature forged on release LOS ANGELES (AP) — Two forensic experts have testified that a signature on a model release form involving photos of Cameron Diaz appeared to be forged, using an autographed publicity photo of the actress. Photographer John Rutter is accused of trying to blackmail Diaz over the pictures he took in 1992, before she was famous, and attempted to sell back to her in 2003 for $3.5 million, before her film "Charlie's Angels: Full Throttle" was released. Forensic document examiner Bruce Greenwood, who has analyzed copies of Diaz's writings, testified Monday that the signature on the release form appeared to be forged. He also testified that the signature on the publicity photo of Diaz and "Feeling Minnesota" co-star Keanu Reeves was a fake. Greenwood said he noted certain letters in Diaz's name were "slanted completely different " from the handwriting samples that he had received from her. Diaz testified last week that Rutter told her if she didn't buy the photos, he could sell them for $5 million to buyers he said would use them to portray her as a "bad angel.“ Prosecutors said Rutter allegedly showed Diaz the release form when he tried to blackmail her and the actress said it wasn't her signature. Forensic expert George Reis, who worked for the Newport Beach Police
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  • Spring '09
  • PERR
  • Human voice, Questioned document examination, Cameron Diaz, •  • , digital audio-video recordings, sound spectrograph

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