AnswersForensics 1a IntroductionUnit 4: At the Crime Scene

Unit 5: Back at the Lab Answers

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What does the first officer at a crime scene do?

A
choose a search pattern and collect evidence.
B
secure the scene and speak with witnesses.
C
prepare PPE for all investigators.
D
ensure all suspects understand their rights.
5

Brent is new to his position at the forensics lab and forgets to document the chain of custody for a glove taken from the scene of the crime. What result might Brent’s lack of documentation cause?

A
The glove will be inadmissible in court.
B
The glove will be returned to the suspect.
C
The glove will be used to justify a warrant.
D
The glove will be examined for new fingerprints.
7

A police officer arrives at a chaotic college party after a noise complaint. She stops a person leaving the party. The Fourth Amendment does not preclude her from:

A
putting the person in the back of her police car
B
looking through the person’s phone
C
searching the person’s bag without permission
D
asking for identification from the person
8

CSI Tanya is writing an extensive email to her colleagues on the case. What is Tanya’s primary reason for putting everything in writing?

A
to get a baseline using fixed points to show evidence locations.
B
to avoid drama or personal opinions in the case.
C
to obtain a warrant written to a judge to approve all evidence seized.
D
to document all communication used in the case.
10

The Fourth Amendment:

A
permits the seizure of property by police.
B
allows investigators the right to search.
C
prohibits unreasonable search and seizure.
D
gives police the authority to search.
11

A police officer at a coffee shop sees a man put a woman’s laptop in his backpack. Can the police officer search the backpack?

A
No. They would need a search warrant.
B
They may if the backpack is still open.
C
Yes. They witnessed the crime.
D
It depends on if the man agrees to the search.
14

Crime scene sketches are important because they can clearly depict the scene to:

A
show evidence in detail.
B
reduce misunderstandings.
C
keep evidence secure.
D
eliminate the need for searches.
16

What must happen before a scene is searched?

A
a rough crime scene sketch is drawn.
B
a warrant is issued.
C
the police arrest a suspect.
D
a judge arrives at the scene.
17

The CSI bends down and selects their tweezers to collect the hair. How will choosing the correct tool assist with evidence collection?

A
It ensures an unambiguous chain of custody.
B
It avoids contamination or damage to the evidence.
C
It magnifies the trace evidence to get a closer look.
D
Its measurements start from baseline.
18

The CSI investigator finds several items of clothing from the scene that could possibly be used as evidence. What will they do next and why?

A
place each item in a separate bag and seal them to prevent contamination
B
place all items in one paper bag to ensure evidence from one scene is kept together
C
use a microscope to determine which items need to go back to the lab
D
make hypotheses to build a case for the prosecutor
19

In 1959, the Supreme Court ruled that it is better for citizens to not be subject to easy arrest. This is so even if:

A
the guilty sometimes go free.
B
there were no Fourth Amendment.
C
a judge is the suspect.
D
the crime is a new one.
20

To best collect hair samples, how would CSI Wendy place and seal each sample?

A
in the same bag.
B
in different colored bags.
C
in its own envelope.
D
on one long piece of tape.

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