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Forensic Science Final Flashcards

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14282859557Forensic Scienceapplication of science to those criminal and civil laws0
14282861859Criminologystudy of crime and criminals1
14282863251criminalisticsscientific evaluation of physical evidence in criminal cases2
142828655381st crime labedmond locard3
14282869074Locard's exchange principlewhen 2 objects come in contact with each other, a transfer of material will occur4
14282873753BASIC SERVICES of a crime labphysical science unit biology unit firearms unit document examination unit photography unit5
14282878061OPTIONAL SERVICES of a crime labtoxicology unit latent fingerprint unit polygraph unit voiceprint unit evidence collection unit6
14282882859OUTSIDE SERVICES of a crime labpathology anthropology entemology psychiatry/psychology odontology7
14282894466frye standardtest to determine admissibility of evidence using scientific evidence8
14282898927daubert standardtest to determine admissibility of evidence using witness testimony9
14282902376chain of custodythe documented and unbroken transfer of evidence10
14282904698circumstancial evidenceindirect evidence that can be used to imply a fact but does not directly prove it11
14282907460class evidencematerial that connects an individual or thing to a certain GROUP12
14282910805direct evidenceeyewitness accounts, police dashboard video cameras13
14282912634individual evidencea kind of evidence that identifies a particular person or thing14
14282913902paper bindlea folded paper used to hold trace evidence15
14282914667primary crime scenethe location where the crime took place16
14282915467secondary crime sceneplace related to crime, where evidence is found17
142829229811st historical report1235 AD- Chinese death investigation (Sung Tuz)18
142829278451st legal use of entomologyBuck Ruxton case19
14282929099Stages of Decompositioninitial decay putrefaction black putrefaction butyric fermentation dry decay20
14282933853order dipteraflies21
14282935482Order Coleopterabeetles22
14282936654Order Hymenopteraants, bees, wasps23
14282938626Blow fly stages of developmentegg larva pupa adult24
14282945345Aerial Collection Methodsweep net back and forth over corpse to collect adult flies; put into vial with a label to determine max PMI25
14282951579Hand collection methodcollect maggots with forceps, place into boiling water to stretch and fix them; place into vial26
14282960407live samplingmaggot motel27
14282962132PMI (post mortem interval)setting the minimum and maximum time between death and corpse discovery28
14282973208min PMIshortest possible amount of time between death and discovery29
14282976442max PMIlongest amount of time between death and discovery30
14282983555relationship between insects and temperatureambient temperature plays a role during egg and larva development but after, it decreases31
14282988861relationship between insects and drugscocaine- speeds up development heroin- slows down development32
14294132804lighting used to find footprintsoblique lighting33
14294135249how to process 2D printsphotograph, lift, dust34
14294142058what info can we inferred from a footwear impressionidentity of footwear (class or individual), shoe size, height, # of perpetrators35
14294148345reconstructive evidence (+ examples)provides info about events before, during, and after crime (blood spatter, bullets, broken glass)36
14294154323associative evidence (+ types)provides link between crime scene and person/object (class and individual)37
14294163466trace evidence (+ examples)small evidence (hair, fibers, dust)38
14294167994parts of hair as parts of a pencilcuticle - yellow paint cortex - wood medulla - graphite39
14294186423part of the hair with the 3 layersshaft40
14294189351coronal (ex. mouse) CUTICLE41
14294196670spinous (ex. cat) CUTICLE42
14294200511imbricate (ex. human) CUTICLE43
14294209405uni/multiserial (ex. rabbit) MEDULLAsquares44
14294250614vacuolated (ex. dog or fox) MEDULLAbubble letter L's45
14294259895lattice (ex. deer) MEDULLAsmall circles46
14294262080amorphous (ex. human) MEDULLAleaf/blob47
14302018713Biometricsuse of measurements for identification purposes48
14302021108what does AFIS stand forautomated fingerprint identification system49
14302026492what types of prints does AFIS containknown criminals, unknown prints, gov. employees, gun owners50
14302030792friction ridgespatterns on skin that allows for grip51
14302033446fingerprintspattern left behind on surface, made of sweat and oils52
143020389684 premises of fingerprint identificationfriction ridges develop in fetus fingerprints remain unchanged throughout life (without scars) location of minutia are unique fingerprints vary in a way that allows them to be classified53
143020490493 types of fingerprintslatent, patent, plastic54
14302054989patent printsneed to be photographed, visible easily, no processing required, grease/dark oil/blood55
14302060982plastic printsneeds to be photographed, visible easily, needs processing, mud/butter/silly putty56
14302080079latent printscannot be seen with naked eye, photographed after processing,57
143020892063 fingerprint patternsloop, arch, whorl58
14302093078loop (percent and specializations)65% ; radial loop, ulnar loop59
14302099372arch (percent and specializations)6% ; plain arch, tented arch60
14302103997whorl (percent and specializations)29% ; plain whorl, central pocket loop whorl61
143021082193 types of developmental methodsphysical, chemical, special illumination62
14302112126physical developmental methodpowder dusting; surfaces- metal, glass, ceramic63
14302116781chemical developmental methodninhydrin - paper surface SMR- wet surface gram staining - sticky surface64
14302126567special illuminationuses alternate light sources, color filter, or laser to enhance prints65
14302135237diff. minutaespur, ridge ending, lake/enclosure, bifurcation, bridge, independent ridge, dot/island66
14302284287expert testimonycan give opinion only67
14302292067eyewitness testimonycan give factual testimony only68
14302298857examples of qualifying questionscite educational degrees, membership in profession, articles/books published69
14302304134voir direopposing attorney asks a would be expert qualifying questions to determine expertise70
14302312014who asks the qualifying questionscourt71
14302313244Why is eyewitness testimony unreliablehuman memory is fragile and malleable72
143023548652 factors that NJ supreme court allows eyewitness testimony to be admissablelighting and how long witness was able to look at suspect73
14302359503own racial biastendency to recognize people of own race74
14302362690innocence projectnon profit organization that challenges dubious rulings75
14302444483first responderfirst police officer to arrive at a crime scene76
14315572475what is dnagenetic info that codes for proteins that makes us who we are77
14315577158forensic interest is only _____ base pairs40078
14315580789min number of cells needed to develop genetic profile3079
14315588099who discovered dnafriedrich miescher80
14315591569what did miescher dodiscover dna by separating nuclei in pus81
14315596410watson and crickdiscovered structure of dna (used rosalind franklin's research)82
14315605937who invented pcrkary mullis83
14315609834pcr stands for + definitionpolymerase chain reaction - amplifies sections of dna84
14315631947gel electrophoresisProcedure used to separate and analyze DNA fragments85
14315637160sir alec jeffreysused RFLP and applied DNA to forensics86
14315676508RFLPRestriction Fragment Length Polymorphism (organisms can be identified by how certain sections of their DNA cleaves)87
14315684842STRshort tantem repeats (short sections of dna that repeat)88
14315695305what are the big fourrace, age, height, gender89
14315700047bones/characteristics used to determine genderpelvis, sub pubic angle/bone, coccyx, ribcage90
14315705677bones/characteristics used to determine agesutures, long bones, number of bones91
14315711966bones/characteristics used to determine raceskull size/shape92
14315714189bones/characteristics used to determine heighthumerus, radius, femur, tibia length93
14315724403where is the body farmKnoxville, TN94
14315725966ICMPInternational Commission on Missing Persons - locate and identify victims95
14315736818requirements of a coroner + dutiesover 21, US citizen (untrained in medicine) - investigates human deaths96
14315751270common smells in an autopsybitter/burnt almonds- cyanide sweet smell- alcohol97
14315761978mechanism of deaththe specific body failure that leads to death (massive hemmorage)98
14315764058cause of deaththe immediate reason for a person's death (gunshot wound)99
14315767234manner of deathhow death occured (homocide)100
14315773335rigor mortischemical reaction that takes place in muscles, causing them to stiffen101
14315781722rigor mortis time framestarts: 1.5 hours; peaks: 8 hours; dispates: 20-24 hours102
14315785379livor mortisthe settling of the blood, causing the skin to change colors103
14315790341livor mortis time framestarts: within hour after death; peaks: 12 hours; fixed: 24 hours104
14315794911algor mortisbody temperature105
14315798735brain hemorragescocaine use106
14315801453Petechial hemorrhagessuffocation107
14315804674broken hyoid bonestrangulation108
14315806277wipewet blood pool, non bloody item runs across109
14315808813swipeblood soaked item, non bloody surface110
14315812294parent droppool of blood (O)111
14315814704satellitesmall droplets around pool (. . .)112
14315817032spinepointed/elongated stains away from central area ( _______ )113

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