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FORENSICS Name these popular forensic investigators FORENSICS • Means “in relation to the law or courts” Three Basic Types • Loop • Arch Sixty to 65 percent of the population have loops about 5 percent have arches • Whorl 30 to 35 percent have whorls Fingerprints • Are the best single method of individualization available • Latent prints (invisible or unseen) Patent prints (visible) What animal has fingerprints which are virtually indistinguishable from those of humans? Answer: A Koala! Do you know… What common household item may be used to get fingerprints from a bag (using the vapours from this product? Krazy Glue! Can you change your fingerprints? • Notorious criminal John Dillinger tried to burn off his fingerprints with acid. It didn’t work – the print grew back the same. • Criminal Roscoe Pitts eliminated the prints of his fingertips by having them sewn from skin grafts in his chest. He was later identified from prints of his palm, left at the scene of a crime! DNA (Deoxyribonucleic Acid) • DNA is the same for identical twins • The odds of anyone else sharing the same DNA profile are over one in a trillion! • https://www.youtube.com/watch?v =6pskdKTbrCQ Skin • Largest organ of the human body • Replaces itself approximately every 30 days Did you know: 96% of household dust is dead skin cells! Locard Principle • Every contact leaves a trace • You take something away and leave something behind every place you go, including a crime scene "Everywhere you go, you take something with you, and you leave something behind" is the premise behind Locard's theory. FORENSICS Day 2 Could a forbidden DNA technique track Taylor's killer? Evidence • Trace evidence -Hair, fibres • Transient evidence -Short-lived evidence • Hold back evidence (odours, imprints & indentations) - Information only the police and offender would know Opinion Evidence • Only someone deemed an expert may give an opinion in court about something • “This is what I believe....based on the evidence found...I believe this is what occurred” (done in a voir dire, where jury leaves courtroom) Coroner • Is called to declare people dead • Has the legal right to take possession of a body to investigate cause of death • If death occurred from natural causes, a death certificate is issued • $250/case (2003 statistic) Coroner’s Inquest • An inquest is usually held if death results from • • • • • Violence Negligence Misconduct Malpractice A disease or sickness not treated by a doctor • Misadventure or dangerous practices • Suspicious circumstances during pregnancy Coroner’s Inquest • Involves coroner and 5 jurors chosen by coroner • During inquest, evidence is presented and witnesses testify to determine when, where, how, and by what means a person died • Jury makes recommendations to help prevent similar deaths in the future • Recommendations are not binding Coroner's inquest into fatal fire begins Colonel Russell Williams Case • Voiceprints, lip prints, ear prints, glove prints, and DNA profiling provide additional or alternative methods for recognition. Russell Williams video Top 10 Unsolved Crimes http://content.time.com/time/speci als/packages/article/0,28804,1867 198_1867170_1867291,00.html