Chapter 2 Celebration of Learning!! - Robert Ly | Laabri

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This is your opportunity to show off what you've learned about evidence collection and crime scene processing - WOOOOO!!!

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Locard’s Principle of Exchange states that cross-transfers provide useful evidence as well as clues that indicate when the exchange occurred.

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It is the duty of the first responding law enforcement officer to secure the crime scene.

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Detectives document the crime scene in detail and collect physical evidence.

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Crime scene reconstruction involves ______.

detectives using the evidence to support theory of the events as it was understood at the scene of the

crime

interpretation of the evidence by CSIs at the time of collection through lab technicians and finally

detectives

lab technicians organizing the evidence according to value and importance before sending it to the

detectives

forming a hypothesis of the sequence of events from before the crime was committed through its

commission

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Evidence that is consistent when it is retested and was properly collected and analyzed using accepted protocols is considered _____.

subjective and accepted

reliable and valid

sufficient and certified

objective and qualitative

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Knowing the shoe size of a bloody footprint tells us that someone with that shoe size was at the scene, allowing us to exclude persons with other shoe sizes, which is an example of _____.

class evidence

biological evidence

individual evidence

differentiated evidence

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Crime scenes that are staged will contain evidence that is _____.

treated differently than evidence at other crime scenes

marked as staged or faked when being collected and bagged

not consistent with the testimony of witnesses

clearly identifiable as suspicious or faked

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Trace evidence from brushing past a pot of flowers will be _____.

of little to no interest to investigators and detectives

a crucial piece of evidence for solving the crime

less extensive than falling into a pot of flowers

important for discovering when the exchange occurred

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A(n) ______, also called a druggist's fold, is used for packaging evidence that has been allowed to air dry.

paper bindle

dry leaf

evidence collection log

plastic baggy

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A person is accused of breaking into someone else's backyard and stealing avocados last night. Select all of the following choices that are forms of direct evidence against the suspect:

testimony from a jogger who saw the suspect jumping over the fence with a bag of avocados last night

surveillance footage showing the suspect parking their car behind the victim's house

a guacamole stain on the suspect's shirt

testimony from the victim's family that the avocado tree had much less fruit the day after the alleged robbery

wood chips stuck to the sole of the suspect's shoe that match wood chips in the victim's backyard

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Select all of the following options that are examples of physical, trace evidence:

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List the 7 S's of crime scene investigation in order (top to bottom).

Secure the scene
See the scene (photograph evidence)
Search the scene
Secure the evidence
Separate the Witnesses
Scan the scene
Sketch the scene

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Saliva is a type of ________ evidence because it contains DNA that identifies a unique individual.

physical, trace

biological, class

physical, individual

biological, individual

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The 2nd part of Locard's Principle of Exchange implies that _______.

trace evidence can be utilized to determine when the exchange occurred

biological evidence is seldom transferred between individuals

a fistfight would result in a greater transfer of trace evidence than bumping into each other

the validity of a piece of trace evidence depends on the nature of the transfer between the 2 entities.

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A crime-scene sketch should include all of the following except

date and location of the crime scene.

a distance scale.

the type of search pattern used to collect the evidence.

a north heading.

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A suspect is linked to a murder by the presence of hair found on a chair at the victim’s house and a fingerprint found on the coffee table. Crime-scene investigators found a fingerprint consistent with a suspect’s fingerprint, and they found the hair to be similar to the hair from the head of the same suspect. Provide arguments supporting the claim that this evidence is not sufficient to prove the suspect was the murderer. Include the following terms in your answer:
Circumstantial evidence
Class evidence
Individual evidence
Direct evidence

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Drag the correct labels onto the crime scene sketch below!

Mmuae Afoforo a Wobɛpaw:

distance scale

true north

measurement from 2 fixed points

legend

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