Graf, document, dactil cp
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Graf, document, dactil cp Graf, document, dactil cp Presentation Transcript

  • Criminal Sciences and Criminology DOUMENT EXAMINATION/ GRAPHOSCOPY / DACTYLOSCOPY
  • Graphoscopy
    • It is the discipline that studies the manuscripts in order to establish the authenticity of the origin of the signatures , forgery of manuscripts studies and identifies the real author.
    • Changes (Alterations) in writing
    • Misrepresentation (Tergiversation): The action by which a writer varies his own writing. Usually change aspects such as tilt, and the size of your writing.
    • Imitation: is when a writer reproduces the writing of another person. The degree of certainty , skill and practice determine the quality of an imitation .
  • Recognition printing features.
    • It is important for investigators to recognize characteristics of the main printing systems involved in the preparation of documents used for public or private transactions.
    • Lithography : The information printed in this system is characterized in that its characters have sharp edges , and the touch is flat.
    • Typography : it stands on the edges of the letters, numbers or symbols there is an ink recharging, called flash, and sometimes are bas-reliefs in the document.
  • DOCUMENT EXAMINATION
    • It is the discipline that deals with the examination of documents to dictate their authenticity or alterations that have been subjected.
    • Is defined as the technique to establish a methodology by the authenticity of writings and documents and determine the identity of the authors.
  • The document: componets parts.
    • Support or type of surface: the physical area that contains the information in the document.
    • This varies in shape and composition, for example a glass, metal, cardboard , walls, plastic, etc…
    • Information supplied : it can be expressed by printing or writing, latent or visible.
  • The document and the chain of custody
    • Fixing: Use of photography or video and written form will ensure the knowledge of the document's location in relation to the rest of the site of the event.
    • Survey: Sometimes you need to see the document as a surface likely to contain latent prints, reason will be lifted with tongs and gloves.
    • Packaging: Depends on the type of information, shall be packed in a plastic bag. Others can be in a paper or plastic, other can be in a cardboard box.
  • Dactyloscopy
    • The set of techniques and procedures that are intended to study and classification of fingerprints.
    • This science we can determine the identity of an individual with absolute certainty .
    • Dactylogram called the impression of a fingerprint and inn steeped in ink on paper.
    • In the fingerprints are three characteristics:
    • 1: Generals, 2: Specifics and 3: Individuals.
    • 1. General : Basilar system, marginal system, and nuclear system
    • 2. Specific: These are used by experts for identification
    • 3. Individuals : Determine the uniqueness of each one of us. They have the following properties:
    • 1. Inmutabilidad : do not change throughout our lives.
    • 2. Perennes : remain in us from before birth until after death.
    • 3. Diversiformes: all tracks are different from each other. Never repeat