FSC100H5 Lecture Notes - Lecture 13: Homicide
Document Summary
More physical evidence recovered more likely theory of what happened during crime can be established. But cant collect and submit everything for analysis. Selectivity determined by collectors knowledge of crime labs techniques, capabilities, limitations. Lack of knowledge can lead to evidence being overlooked or collected improperly. Tv shows and high profile cases brought dna and fingerprints on every scene. Publics expectations of dna and fingerprints on every scene. Having dna evidence for every scene not feasible. Finding dna evidence requires perpetrators to leave it investigators to collect it. Benefits may not justify time and resources required for dna analysis. Why might an item not be accepted for dna analysis. Item types has low success rate/expectation of obtaining reliable results. An individual is already associated with the items. Testing for a persons dna on an item found in their possession. Item has been found previously testing for body fluids or fingerprints.
