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FORENSICS ASK CLASS – when you hear the word forensics – what comes to mind? What do you think are 2 important things that forensic investigators look for when they show up at a scene?
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Name these popular forensic investigators
ANSWERS - Dick Tracey, Dexter, The Flash, Sherlock Holmes, Griffin (CSI)
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FORENSICS Means “in relation to the law or courts”
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Three Basic Types Loop Arch Whorl
Sixty to 65 percent of the population have loops Loop Arch Whorl about 5 percent have arches DID YOU KNOW… Fingerprints are formed before birth and are never changed 30 to 35 percent have whorls
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Fingerprints Are the best single method of individualization available
Latent prints Patent prints (invisible or unseen) (visible) QUESTION - What animal has fingerprints which are virtually indistinguishable from those of humans?
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Answer: A Koala! Get picture of Koala hand print.
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Pop-Quiz What common household item may be used to get fingerprints from a bag (using the vapours from this product?
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:) Who knew? Krazy Glue!
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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!
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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! eos/solved-minister-of-murder.html DNA Defined – 1 min Solved Minister of murder- 3 min 45 secs
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Skin Largest organ of the human body
Replaces itself approximately every 30 days Did you know: 96% of household dust is dead skin cells!
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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. Locard – director of first crime laboratory, located in France.
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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)
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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
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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 Montreal Example (Coroner’s Inquest into fire – 2011) - 1 min 53 secs Coroner's inquest into fatal fire begins
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Colonel Russell Williams Case
Voiceprints, lip prints, ear prints, glove prints, and DNA profiling provide additional or alternative methods for recognition. 45 mins long If time another day – The Confession of Colonel Russell Williams Article on the sentence terms-for-despicable-crimes Russell Williams video
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