Forensic Science: Questioned Documents

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Oblique Light

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Light that comes from a source positioned at a low angle, revealing details on the surface of evidence.

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Check Fraud Loss Estimate

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$5 billion is estimated to be lost each year due to check fraud.

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Forgery

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The act of producing an inauthentic copy of a document, signature, or artwork, as well as any unauthorized altering of an original document.

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Known Specimens

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Samples of similar documents known to have been produced by the same specific technique, individual, or technology as a questioned document.

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Dating a Document

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The location where a document was found cannot be used to date it.

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Counterfeiting

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The act of creating a fake document or item with the intent to deceive.

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Watermark

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A recognizable image or pattern in paper that appears when held up to the light, often used for authentication.

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Erasures

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The act of removing or altering text or images from a document, often to conceal information.

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Ink Analysis

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The study of ink properties to determine the age or authenticity of a document.

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Document Examination

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The process of analyzing documents to determine their authenticity and origin.