FSC239Y5 Lecture Notes - Lecture 12: Questioned Document Examination, Motor Skill, Motor Cortex
Document Summary
Forensic document examiner: conducts a technical examination of a document to determine its authenticity and or its relationship to a person event or time, don"t determine a person"s character. Is the document genuine: has the document been changed in any way, how was it changed, can we see the original, which person or machine wrote or printed it. Two types of items at lab: questioned sample, known, comparison samples, can be obtained by: request: voluntary for purpose for handwriting exam, collected: done in usual course of business/social activity. Handwriting: majority of cases in handwriting, a learned behaviour that becomes habitual, a complex motor skill, controlled by the brain through a network of connections between sensory and motor areas. Involves natural variation: never going to write the same thing exactly the same. Examinations: assess suitability naturalness, anything that looks unnatural might be disguised, side-by-side comparison of known and unknown, evaluation, agreement individuality limitations, conclusion.
