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Document Analysis Document analysis Write the following: A guy is driving around the back woods of Montana and he sees a sign in front of a broken down shanty-style house: ‘Talking Dog For Sale.’ He rings the bell and the owner appears and tells him the dog is in the backyard. The Lab looks up and says, ‘Well, I discovered that I could talk when I was pretty young. I wanted to help the government, so I told the CIA. In no time at all they had me jetting from country to country, sitting in rooms with spies and world leaders, because no one figured a dog would be eavesdropping.’ Document Analysis The examination of questioned documents with known material for a variety of purposes; such as authenticity, alterations, erasures, obliterations. History One of the first important uses was in the case of the kidnapping and murder of Charles Lindbergh’s young son (1927). 1999: officially accepted as uniquely identifying by the US Court of Appeals I. Document Examiner Role of the document examiner Identifies efforts to obscure or alter original contents of writings/typewritten material May recover original contents of writings or typewritten material Evaluates authenticity of questioned documents I. Document Examiner cont’d B. Questioned document Any object that contains handwritten or typewritten markings whose source or authenticity is in doubt Examples: letters, checks, contracts, wills C. Collect Known Writings (Exemplars) Uniqueness of handwriting makes this type of physical evidence almost like a fingerprint; a definitive physical characteristic II. Handwriting comparisons A. General Style Education guides early handwriting development. In the US, two major styles taught: 1. Palmer method (1880) II. Handwriting comparisons cont’d 2. Zaner-Bloser method (1885) II. Handwriting comparisons cont’d B. Variations in handwriting Combination of mechanical, physical, and mental functions no single characteristic can be the basis of a positive comparison