Graf, document, dactil cp


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Graf, document, dactil cp

  1. 1. Criminal Sciences and Criminology DOUMENT EXAMINATION/ GRAPHOSCOPY / DACTYLOSCOPY
  2. 2. Graphoscopy <ul><li>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. </li></ul><ul><li>Changes (Alterations) in writing </li></ul><ul><li>Misrepresentation (Tergiversation): The action by which a writer varies his own writing. Usually change aspects such as tilt, and the size of your writing. </li></ul><ul><li>Imitation: is when a writer reproduces the writing of another person. The degree of certainty , skill and practice determine the quality of an imitation . </li></ul>
  3. 3. Recognition printing features. <ul><li>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. </li></ul><ul><li>Lithography : The information printed in this system is characterized in that its characters have sharp edges , and the touch is flat. </li></ul><ul><li>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. </li></ul>
  4. 4. DOCUMENT EXAMINATION <ul><li>It is the discipline that deals with the examination of documents to dictate their authenticity or alterations that have been subjected. </li></ul><ul><li>Is defined as the technique to establish a methodology by the authenticity of writings and documents and determine the identity of the authors. </li></ul>
  5. 5. The document: componets parts. <ul><li>Support or type of surface: the physical area that contains the information in the document. </li></ul><ul><li>This varies in shape and composition, for example a glass, metal, cardboard , walls, plastic, etc… </li></ul><ul><li>Information supplied : it can be expressed by printing or writing, latent or visible. </li></ul>
  6. 6. The document and the chain of custody <ul><li>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. </li></ul><ul><li>Survey: Sometimes you need to see the document as a surface likely to contain latent prints, reason will be lifted with tongs and gloves. </li></ul><ul><li>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. </li></ul>
  7. 7. Dactyloscopy <ul><li>The set of techniques and procedures that are intended to study and classification of fingerprints. </li></ul><ul><li>This science we can determine the identity of an individual with absolute certainty . </li></ul><ul><li>Dactylogram called the impression of a fingerprint and inn steeped in ink on paper. </li></ul><ul><li>In the fingerprints are three characteristics: </li></ul><ul><li>1: Generals, 2: Specifics and 3: Individuals. </li></ul>
  8. 8. <ul><li>1. General : Basilar system, marginal system, and nuclear system </li></ul><ul><li>2. Specific: These are used by experts for identification </li></ul><ul><li>3. Individuals : Determine the uniqueness of each one of us. They have the following properties: </li></ul><ul><li>1. Inmutabilidad : do not change throughout our lives. </li></ul><ul><li>2. Perennes : remain in us from before birth until after death. </li></ul><ul><li>3. Diversiformes: all tracks are different from each other. Never repeat </li></ul>