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Handwriting Analysis

Handwriting Analysis. 25 hoaxes that had us fooled Hitler Diaries https :// www.youtube.com/watch?v=s3oDHem9lrs Dreyfus Affair https:// www.youtube.com/watch?v=wDKQipKFT0k. CLASS EVIDENCE INDIVIDUAL EVIDENCE. CLASS OR INDIVIDUAL EVIDENCE?. What can we analyze in a document and how?. Sex?

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Handwriting Analysis

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  1. Handwriting Analysis 25 hoaxes that had us fooled Hitler Diaries https://www.youtube.com/watch?v=s3oDHem9lrs Dreyfus Affair https://www.youtube.com/watch?v=wDKQipKFT0k

  2. CLASS EVIDENCE INDIVIDUAL EVIDENCE CLASS OR INDIVIDUAL EVIDENCE?

  3. What can we analyze in a document and how?

  4. Sex? • Age? • Gender? • Religion? • Personality? • Background? • Mood? • Fatigue? What influences our handwriting?

  5. 12 MAJOR CHARACTERISTICS

  6. Forgery: Blind Forgery: Simulated Forgery: Traced Forgery: Forgery

  7. Forged documents include: • checks • employment records • legal agreements • licenses • wills • Fraudulence—___________ • Chequeforgery can include: • ordering another’s cheque’sfrom a deposit slip • altering a cheque • intercepting another’s cheque, altering, and cashing it • creating a chequefrom scratch

  8. Analyze Signatures Using Letter Angle Plate

  9. Obliterate: to remove writing • Chlorine or sodium hypochlorite can make ink colourless • UV light, Infrared light, and microscopes can be used to reveal alterations. • Indented impressions can be left on the paper beneath • DO NOT rub with pencil but use oblique light • Indentations also increase a paper’s capacity to hold an electrostatic charge. • Electrostatic detection apparatus (ESDA) is used • Pour toner powder over charged sheet of plastic covering the paper which creates an image which is then photocopied. • Iodine crystals can be used too Obliterating Handwriting

  10. Biometric Signature Pads • “Learns” to recognize how a person signs • Evaluates speed, pressure, and rhythm of the signature • Recognizes forgeries by the detection of even slight differences • Computerized Analysis • Compares handwriting samples objectively • Compared with samples stored in databases Technologies

  11. Evidence in the Courtroom • Shortcomings in Analysis Authentication

  12. Chemically sensitive paper • Large font size requires more ink and makes alterations more difficult • High resolution borders that are difficult to copy • Multiple color patterns • Embed fibers that glow under different light • Use chemical wash detection systems that change color when a chequeis altered Avoiding Forged Cheques

  13. Best forgeries aim to duplicate the materials found in the original: • old paper • chemically treated materials to fake an older look • inks mixed from substances that would have been used at the time • watermarks that add the appearance of age • tools and styles that would have been popular at the time Making Something That its NOt

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