FSC100H5 Lecture Notes - Lecture 12: O. J. Simpson, Luminol, Fingerstick
Document Summary
Tv shows and high-profile cases (oj simpson) brought dna and fingerprint evidence into spotlight. Public expectation of dna and fingerprints on every scene: which would lead to investigators to specific suspect. Having dna evidence for every scene not feasible: finding dna evidence requires perpetrator to leave it, investigators to find and collect it, benefits may not be justify time and resources required for dna analysis. Item type has low success rate/expectation of obtaining reliable results: ex. Not the most relevant to address allegations. No probative value (not adding anything to the case) An individual is already associated with the item: ex. Testi(cid:374)g for a perso(cid:374)"s dna o(cid:374) a(cid:374) ite(cid:373) fou(cid:374)d i(cid:374) their possession. Item has been previously testing for body fluids or fingerprints (cid:862)triage(cid:863) dna evide(cid:374)ce. Constant consultation and communication between crime and scene investigators and forensic lab scientists: severity of offense, type of evidence, probative value of evidence, urgency/risk to public.
