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The word steganography comes from the Greek name “steganos” (hidden or secret) and “graphy” (writing or drawing) and literally means hidden writing. Steganography uses techniques to communicate information in a way that is hidden.
Handwriting exemplars are used by a document examiner to determine the writing habits of an individual. Ideally, the exemplars will provide an adequate picture of the writer's habits such that a meaningful comparison can be conducted with the questioned material.
It may be material not normally thought of as a "document"; FDEs define the word "document" very broadly, as any material bearing marks, signs, or symbols intended to convey a message or meaning to someone. This includes, for example, graffiti on a wall, stamp impressions on meat products, and covert markings hidden in a written letter.
Investigative journalism is a form of journalism in which reporters deeply investigate a single topic of interest, such as serious crimes, racial injustice, political corruption, or corporate wrongdoing. An investigative journalist may spend months or years researching and preparing a report.
Technical writing is most commonly performed by a trained technical writer and the content they produce is the result of a well-defined process. Technical writers follow strict guidelines so the technical information they share appears in a single, popularly used and standardized format and style (e.g., DITA, markdown format, AP Stylebook, Chicago Manual of Style).
Investigation, the work of a detective; Investigation, the work of a private investigator; Criminal investigation, the study of facts, used to identify, locate and prove the guilt of an accused criminal; Criminal investigation department, the branch of British Police force to which plainclothes detectives belong
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Informants are extremely common in every-day police work, including homicide and narcotics investigations. Any citizen who provides crime-related information to law enforcement by definition is an informant. [6] Law enforcement and intelligence agencies may face criticism regarding their conduct towards informants.