Class Notes (838,386)
Canada (510,872)
FSC239Y5 (435)
Cahn (31)
Lecture

FSC239 Feb 10 2011
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Department
Forensic Science
Course
FSC239Y5
Professor
Cahn
Semester
Winter

Description
FSC239thFebruary 10 Hair and Fibre EvidenceHistory of trace evidenceThe microscopic debris that covers our bodies are the mute witnesses sure and faithful of all the our movements and all our encountersEvery contact leaves a trace Fibres and hairs can be transferred between individuals between individuals and objects or between objects Purpose2 purposes investigative or associate Collection of trace evidenceHair identificationFibre identification and comparisonTextile damage assessment Transfer and persistenceApp 80 of hairsFibres is lost in the first 4 hours from contacttransferFactors affecting rate of lossType of donorLength of hairfibreEnvironmental conditionsHandlingcleaningObjectivesEfficient collection of evidential extraneous hair and FibresPrevention of contamination between items or envi
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