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FSC100: The Real CSI Final Exam | Questions And Answers Latest {} A+ Graded | 100% Verified
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FSC100: The Real CSI Final Exam | Questions And Answers Latest {} A+ Graded | 100% Verified
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FSC100: The Real CSI Final Exam | Questions And Answers Latest {2024- 2025} A+Graded | 100% Verified
what could be physical evidence? - objects that can:
- establish that a crimme has been committed
- make associations (crime to victim, victim to perpetrator)
recognition - - of not just what but where
- situation of items relative to each other
where to start searching - consider paths of contamination from:
- perpetrator activity
- first responders
- emergency response
- look out for media interference
how do you search a crime scene? - - lane/strip search
- line search
- circle/spiral search
- zone search
what are some other search tools? - canine units
metal detectors
heavy machinery
thermal imaging
ground penetrating radar
search method is based on factors such as: - - indoor/outdoor
- size
,- urgency
- lighting available
- what is being searched for
- what evidence was already found
- concentration of material
- people available
lane/strip search - good for large areas
good for uneven terrain
line search limit - must remain in a super straight line with everyone else as you move across crime
scene, at the same pace
circle/spiral search benefits - good for locating additional items associated to an existing piece of
evidence
typically done indoors - too difficult to do outdoors
circle/spiral limits - difficult to stay in a perfect spiral path to ensure nothing is missed
zone search benefits - good for where other patterns won't work - typically in a house divided by rooms
- used where scene is already broken up into zones
how is evidence collection selective? - - selectivity is determined by collector
- need knowledge about crime lab techniques, capabilities, limitations
- lack of this knowledge can lead to evidence being overlooked or collected improperly
why do you need a reference sample? - to compare unknown samples to it
control/known samples include: - - standard/reference - ex. hair/blood/DNA
- substrate control - ex. oil, carpet
, - elimination samples
how do you prevent contamination? - - use proper PPE
- clean tools between collection of different samples
- change gloves frequently
- package items separately to avoid cross contamination
things that are commonly used to collect evidence - - plastic pill bottles
- manila envelopes
- tinfoil 'boats'
- cardboard pillboxes
- sealable plastic bags
- paper bags of various sizes
what is the druggist's fold used for? - to collect trace evidence
what do you do with wet or bloodstained materials? - air dry them before packaging and/or place into
paper bags so they have room to breathe and dry off
what should be done with items soiled with biological fluid that cannot be dried? - should be placed in a
cooler with ice packs
how do you seal packaged evidence? - with tamper-proof tape, then initial the seal
how do you document evidence? - - case number
- item number
- location
- name of collector
- date and time of discovery
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