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Posted by / 26-Jun-2020 08:29

Forensic paper dating

Each of these approaches provides a set of facts about an artifact's condition, age or origins.The method of choice for any given situation is determined by several factors, including: the objectives of the investigator (authentication, preservation, personal curiosity); the relative value of the paper (historically, legally, personally); and whether the information gained from destructive testing will outweigh the loss of material samples.

An awkward signature prompted the submission of this letter to the questioned document laboratory.Verified as the same handwriting, it gave a complete name and home address.A search of visa records and other materials on file now yielded the true identity of the writer, his cover story, background, and even photographs of him.He had apparently built up a network of informants extending deep into the denied areas.But now a sharp-eyed postal intelligence officer noticed an incorrect postal cachet on one of his envelopes, and his whole file of 300-odd reports was therefore brought to the questioned document laboratory.

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Upon interrogation he admitted his duplicity and begged not to be exposed.

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