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FSC100: The Real CSI Final Exam with Questions and 100% Correct Answers |Verified
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FSC100: The Real CSI Final Exam with Questions and 100% Correct Answers |Verified
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FSC100: The Real CSI Final Exam with Questionsand 100% Correct Answers |Verified
why might a sample not be submitted for analysis? - ✔✔- item type has low success
rate/expectation of obtaining reliable results
- not the most relevant to address allegations
- no probative value
- an individual is already associated with the item
- item has previously been tested for body fluids or fingerprints
sequential processing - ✔✔use of as many developmental techniques as necessary to
process a piece of latent evidence, applying least invasive to most invasive
what are the systems in place to prioritize samples/cases? - ✔✔- severity of offense
- type of evidence
- probative value of evidence
- urgency/risks to public
what are the two types of DNA testing services at the CFS? - ✔✔high volume services and
violent crime services
what is the purpose of high volume services? - ✔✔for lower severity situations, such as
breaking & entering, theft, drug, and weapon offenses
what are the three types of evidence accepted in high volume services? - ✔✔1) cigarette
butts
2) cut-outs from envelope flaps
3) swabs of items suspected to have DNA
,should you do presumptive tests prior to submitting evidence to high volume services? -
✔✔no
how many items can you submit to the high volume services per case? - ✔✔three pieces of
evidence
types of swabs accepted to high volume services - ✔✔- swabs of suspected blood
- saliva swabs
- swabs of worn items
- handler swabs
what are handled swabs? - ✔✔handled items must have been brought to the scene by
perpetrator during commission of offense and are limited to firearms, knives, and tools with
defined grips
what swabs are not accepted by the high volume service? - ✔✔- keys
- cigarette lighters
- door knobs and drawer handles
- ammunition and shell casings
what is the purpose of violent crime services? - ✔✔for homicide, attempted homicide,
sexual assault, robbery, and vehicles striking people (leading to death)
how should DNA be submitted to the violent crimes service - ✔✔entire item should be
submitted when possible, otherwise samples are submitted and packaged separately
should you do blood or fingerprint testing prior to submitting to the violent crimes service? -
✔✔no
,when is fingerprinting done in the violent crimes service? - ✔✔after lab recovers the
biological sample
DNA samples collected form known individuals... - ✔✔- with consent, by warrant, or
discarded samples
- provide information about potential origins of unknown profile and the comparison profile
- exclude individuals as source of unknown
- unknown profile is uploaded to national DNA databank
when are DNA comparisons done? - ✔✔only with samples in specific cases unless previously
requested and authorized; only used for what they've been collected for
where do you collect a known blood sample from? - ✔✔a finger prick
where do you collect a known oral/buccal swab from? - ✔✔saliva or skin cells on inside of
cheek
where do you collect a discard sample from? - ✔✔cigarettes, gum, drinking containers
how do you get samples from personal effects? - ✔✔from razors, toothbrushes, hair
brushes; anything thought to have been used by only one person
managing evidence - ✔✔ensures practicality and performance and is a collaborative effort
what does the term 'forensic' mean? - ✔✔relating to or dealing with the application of
scientific knowledge to legal problems, especially regarding criminal evidence
what is forensic science? - ✔✔science in service to the courts - unique pairing of science and
law
, types of evidence - ✔✔physical evidence
testimonial evidence
circumstantial evidence
what is physical evidence? - ✔✔- objects and impressions
- can be seen, touched, extracted, exhibited
what is testimonial evidence? - ✔✔- eyewitnesses, experts
- assumed that witness has knowledge concerning case
- can be an indirect or direct witness
what is circumstantial evidence? - ✔✔- observations/conditions - transient
- weather/lights on/off
- can be physical or testimonial
- often a collection of facts/observations that infer culpability of an individual
what are other types of evidence? - ✔✔associative
class
electronic
latent
trace
indicative
what is associative evidence? - ✔✔places individual at a scene or with a victim
what is class evidence? - ✔✔requires further classification
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