Ch 1a Forensic Powerpoint
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Transcript of Ch 1a Forensic Powerpoint
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Forensic ScienceWritten by:
Jennifer Hansen
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What is forensic science?Application of science to lawApplies knowledge and technology ofscience to the definition andenforcement of lawsEnforced by police agencies in thecriminal j stice system
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!i"ersity of professions withinthe forensic science
#riminalisticsEngineeringScience$eneralJ rispr dence%dontology&athology'(iology
&hysicalAnthropology&sychiatry andbeha"ioral science) estioned!oc ments*o+icology
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Also di"isions s ch asFingerprint e+aminationFirearm and tool mark e+amination#omp ter and digital data analysis&hotography
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,
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History and !e"elopment ofForensic Science
Earliest -ecord .rd cent ry #hina /i / Ji 0A collection of criminal cases1Woman m rdered her h sband and b rnedthe body and claimed accidental fire#oroner noticed no ashes in mo th ofdeceased and performed e+periment on pigs#hinese were first to recogni2e the potentialof fingerprints as means of identification
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3imited knowledege ofanatomy and pathologyhindered the growth of
forensics ntil the late 45th
cent ry and early 46thcent ry
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7nitial Scientific ad"ances4586 0A treatise on Forensic medicineand & blic Health1
Written by french physician Francois9Eman al Fodere
(iggest breakthro ghs at this time werein chemistry
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7nitial scientific ad"ances455 Sweedish #hemist #arl William
Scheele de"eloped first s ccessf ltest in detecting arsenic poisoning incorpses46;< $erman chemist =alatin -ossde"eloped more precise method ofdetection in stomach lining of "ictims
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Ad"ances thro gh the mid46;; s
46<. First pres mpti"e test for blood*%D7#%3%$/ E=7!EC#E F7-S* SE!7C *-7A3 7C 46.8
Scottish chemist named James >arsh testifiedpresence of arsenic in "ictim
46 ; s9<; s &hotography became an integralpart of recording crime scenes
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3ate Cineteenth #ent ry&rogress
4658 French scientist Alphonse(ertillon responsible forad"ancements in anthropology andmorphology st dy of str ct re ofli"ing organisms
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(ertillon s System0Anthropometry1
systematic proced re in"ol"ed takingbody meas rements as means ofidentifying one indi"id al fromanotherFather of Criminal Identification
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Francis Henry $alton Father of Fingerprinting First definiti"e st dy of fingerprinting andmethodology for classifying and filing468B p blished book 0 Finger &rints1First statistical proof s pportingniG eness of method of identification
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Hans $ross468. & blic processor and j dge in$ra2 A stria p blished 0#riminal7n"estigation1
*his book detailed the assistance thatin"estigators co ld e+pect from fields ofmicroscopy chemistry physicsmineralogy 2oology botanyanthropometry and fingerprinting
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Hans $ross 7ntrod ced the first forensic jo rnal
A jo rnal compiles impro"ed methods ofscience in a field*his jo rnal is still p blished and
pdated to this date
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>ake (elie"e helped this fieldgrowI
Sherlock Holmes was a fictionalcharacter created by Sir Arth r#onan !oyle*ales where abo t !r John Watsonwho was Sherlock Holmes partner andbiographer and together they sol"edcriminal mysteries
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>ake (elie"e helped this fieldgrowI
*his series encompassed fields like:Serology9 st dy of blood and bodily fl idFingerprintingFirearms identification
) estioned !oc ment e+amination
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*wentieth cent ry(reakthro ghs
48;4 !r Karl 3andsteiner disco"eredblood types A ( A( %484 !r 3eone 3attes de"ised asimple test for determining bloodtypes from dried blood
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Albert S %sborn484; !e"eloped f ndamentalprinciples of doc ment e+amination0) estioned !oc ments1
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Edmond 3ocard484; pers aded 3yon s policedepartment to gi"e him B attic roomsand B assistants to start a policelaboratory%nly eG ipment was a microscope andspectrometer
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3ocard s E+change &rincipleWhen two objects come into contactwith each other a cross transfer ofmaterial occ rs
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%ther notable scientists!r Walter >c#rone9 world spreeminent microscopistArmy #olonel #al"in $oddard9 refinedtechniG es of firearm e+amination bysing a comparison microscope
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>odern Scientific Ad"ances #omp ter *echnology#hromatographySpectrophotometryElectrophoresis!CA typing
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Sir Alec Jeffreys!e"eloped first !CA profiling test in486@Has re"ol tioni2ed the practice offornsic science
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What sho ld 7 know at thispoint?
!efinition of forensic scienceWho de"eloped anthrpometry and what itisScientists what they contrib ted,(ertillon $alton 3attes $oddard %rfila
Jeffrey %sborn and 3ocard3ocard s e+change principle