Another well known crime lab is the document analysis unit. This unit is very familiar with ransom notes. The document analysis unit is usually called upon to examine handwriting, typewriting, word processing and computer applications as well as paper and ink (Delich 3). The special method within this unit is called forensic linguistics. Linguistics is used to review the content of communication to identify a speaker and indicate the speaker’s aim. With this special type of document analysis one can determine whether one or more unusual communications are from the same individual (Kurland 22).
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