Osborn's Principles of Questioned Document Examination

Osborn’s Principles of Questioned Document Examination are key guidelines used to analyze handwritten or printed documents, especially in legal cases. They emphasize that no single characteristic determines authenticity; instead, examiners assess multiple features collectively, such as handwriting style, ink, paper, and printing techniques. The principles also highlight the importance of examining known samples for comparison and maintaining objectivity, avoiding bias. Additionally, they emphasize that document examination is a scientific process rooted in consistent methods and careful observation. Overall, these principles ensure a thorough, reliable evaluation to determine a document’s authenticity or authorship.