forensic_psychologyUnderstanding Forensics
soIntroduction
ForensicScience Criminalistics applicationof sciencetocriminal duringcriminalinvestigation
XiYuanLu WashingAwayofWrongs firstwrittenaccountofusingofmedicine en
...
forensic_psychologyUnderstanding Forensics
soIntroduction
ForensicScience Criminalistics applicationof sciencetocriminal duringcriminalinvestigation
XiYuanLu WashingAwayofWrongs firstwrittenaccountofusingofmedicine entomology
to solvecriminalcases
written inChina11240bySongCily1861249
directorofjusticejaila supervisionduringSongdynasty
13thcentury Antamologywasused to solvecriminal cases
studyofinsects
Inforensics it was
qq.mg ftyqs
attracted torottensubstances
how
manylifecycles were completed on thedeadbody wasstudied
Dr EdmondLocard FrenchCriminologist pioneerof Forensic
Fatherof Modern ForensicScience
Formulated basicprincipleofforensicscience i e Everycontactleaves atracen
t
Locard's ExchangePrinciple
foundationofForensics
121importantquestions when an Investigationtakesplace
as
Todetermine if a crimehas happened or someonehasframed staged acrime
If a crimehas happened whohas commited it
NeedofForensicScience
GoalofForensicscientists examiningevidencefromcrime sceneusing strictlyscientificknowle
principles inorder to findfacts aboutcriminalcase
Outcomes are objective facts so forensic science can be usefulforbothProsecutiona
Defense
Courtroom verdicts
Iggy
on solid scientific facta not on circumstantial
evidence or eyewitness accounts
In India we have a Judge System all arguments are heardbyjudge based on
L evidences presented
udgewill determine if the personisinnocent
or guilty
JurySystem arguments a evidences are presented tothe judge aswellas
US jury whichis a groupof22peoplecivilians
After arguments are presented these 12 Civilians Jury go to a room and then they discuss debate acomeupwith a
unanimousdecision
ed
A+
Watmen Filterpapers usedforscientificanalysis of bloodsamples Takes24hours togetliquidfrom driedup bloodasit takes more 6hours to
get direct blood source
ftp.gttidff aimeisitxtes
I
Primary Secondary TertiaryforCorroborative
Primary Evidences
eg
Murderevidences Deadbody Murderweapon Bloodsample fingerprints poisionfibrepieces
Secondary Evidences anythingapartfromthe perimeterof primary crimescene
eg an apartment a whatis inside it is a partofprimarycrime
scene s anything beyondtheperimeterof apartment becomes
partofpeconderyaim.mn
lobbyofapartment Istairs
Iidentgelge
that a personhascommitted acrime tyremarksaround I 2evidences I havetangibility ie we cantouchfeelsee apartment
TertiaryEvidences helpthepersonto associatetheevidencewiththecrimeonother
primary a secondaryevidences
Intangible in nature
eg all statementsfrom eyewitnesses suspectsfamilymembers
Psychological evidences which are collected fromaperson in a
Forensic psychology lab
based on Characters 3 types
Physical Testimonial Psychological
PhysicalEvidences collected fromcrime s
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