WorksheetsUnit 1B Observation, Eyewitness, and Crime Scene Investigation
Total questions: 77
Worksheet time: 1hrs 17mins
Ava and Jackson arrive at a crime scene. What is the first step they should take in the Seven S's of Crime Scene Investigation?
Separate the witnesses
Secure the scene
Scan the scene
Search for evidence
During a crime scene investigation at a local school, what is the final step in the Seven S's of Crime Scene Investigation?
Search for evidence
Save/Collect evidence
See the scene
Secure the scene
During a school field trip, which step involves a thorough examination to find all possible evidence?
Secure the scene
Search for evidence
Separate the witnesses
Sketch the scene
During a school investigation, what is the main goal of separating the witnesses?
To prevent them from influencing each other
To create a sketch
To collect evidence
To secure the scene
Noah and Ethan are part of a forensic team. What is the significance of the "Scan the scene" step?
To create a sketch
To identify the primary areas of interest
To separate witnesses
To collect evidence
During a forensic science class, Scarlett is asked which type of evidence should be placed in an airtight container. What should she choose?
Dry trace
Moist biological trace
Liquids
All types of evidence
Aiden and Luna are working on a school project about forensic science. Why is it important for them to use the appropriate method for evidence collection?
To make it look professional
To ensure evidence is not contaminated
To save money
To make it easier to transport
During a forensic science class, Evelyn was asked: What should an evidence log be synchronized with?
The photo log and the sketch
The weather report
The investigator's schedule
The crime scene location
During a school field trip, Ava and Benjamin visited a police station. They learned about the role of the Property Room in the chain of custody. What is its role?
To store evidence securely
To analyze evidence
To present evidence in court
To destroy evidence
When Officer Avery arrives at a crime scene, they have a duty to ensure the scene is safe and
secured
scanned
photographed
sketched
Isla and Harper are part of a forensic team investigating a crime scene. Which of these choices is the correct order of the “Seven S’s” they should follow?
Securing the scene, scanning the scene, separating witnesses, seeing the scene, sketching the scene, securing and collecting evidence, searching the scene.
Securing the scene, separating witnesses, seeing the scene, scanning the scene, sketching the scene, searching the scene, securing and collecting evidence.
Scanning the scene, securing the scene, separating witnesses, seeing the scene, sketching the scene, securing and collecting evidence, searching the scene.
Securing the scene, separating witnesses, scanning the scene, seeing the scene, sketching the scene, searching the scene, securing and collecting evidence.
True or False: Emma takes pictures before she makes a sketch.
True
False
What does Locard's exchange principle state?
Every crime will be solved
Every contact leaves trace evidence
All physical evidence provides information
Crimes cannot be solved without physical evidence
What type of evidence cannot prove 100% that a person was at the crime scene during the crime?
Direct
Circumstantial
What type of evidence would a fingerprint be considered?
Physical
Biological
True or False: Blood would be considered both biological and class evidence
True
False
True or False: Individual evidence would be more beneficial to an investigation than class evidence
True
False
True or False: Direct evidence narrows an identity to a single person or thing
True
False
Eyewitness testimony would be considered:
Direct evidence
Circumstantial evidence
A shoe print (if unique) would be considered both:
Physical
Biological
Class
Individual
In order for an officer to figure out what actually happened, it is common practice to
speak with the witnesses in a group setting
speak with the witnesses individually
only speak with the witnesses who have pertinent information
While scanning the scene it is important that officers
take photographs
collect evidence
hurry up before asked to get a search warrant
determine if there is a secondary crime scene
True or False: Evidence markers should be placed before taking pictures so each piece of evidence can be seen clearly in the photos
True
False
True or False: Sketching should be done before pictures of the scene are taken
True
False
True or False: A rough sketch is almost never drawn to scale
True
False
What is the process must investigators follow when collecting evidence and packaging evidence at the crime scene?
The Chain of Custody
The police
Forensic Science
What is the first priority when arriving at a crime scene? (a)
Which of the following is completed during “seeing the scene?”
Evidence is marked
Evidence is collected
Evidence is analyzed
Evidence is photographed
Search pattern best for when there is only 1 CSI member and no obstacles.
Grid
Line
Zone
Spiral
Search pattern that would be most effective in homes
Grid
Line
Zone
Spiral
original location of a crime or accident
crime scence
primary crime scence
secondary crime scene
Testimonial evidence is also known as
direct evidence
biological evidence
circumstantial evidence
indirect evidence
When evidence has characteristics that can only be traced back to a group of people or objects, it is_________evidence
Direct
Indirect
Class
Individual
When evidence has properties that can be connected to a common source with an extremely high degree of certainty, it has ___________characteristics.
Individual
Class
Indirect
Direct
What should be included on the packaging of any piece of evidence?
description of item
source/location of where item was recovered
names of anyone who has had contact with item
all of these
How should a shirt with biological evidence on it such as a blood drop be packaged?
it should be packaged in paper to allow for drying
it should be packaged in plastic immediately
it should be packaged in the same container as other evidence
Indirect evidence, evidence used to imply a fact but not prove it directly
control sample evidence
eyewitness testimony
primary evidence
circumstantial evidence
Photographs of evidence must be taken with a known size object beside the evidence to:
show the relative size of the evidence
make sure it looks good
to get the proper lighting of the evidence
prove their is dna on the evidence
Which of the following is a type of individual physical evidence?
fingerprint
blood
glass
fibers
Which of the following is an example of a class evidence?
fingerprint
DNA
toolmark
blood
Which of the following is an example of direct evidence?
video of the perpetrator committing the crime
blood drops on the floor
a bullet recovered from a body
hair from a hairbrush
Which of the following is an example of circumstantial evidence?
A bullet from a body
a description given of perpetrator by a person who witnessed the crime
a video of the perpetrator committing the crime
A note given to a bank teller demanding money
Who interviews the witness at a scene?
any police officer
the detective
CSI
coroner
Why should we put wet items such as a bloody shirt into a porous type container?
to hide the evidence from prying eyes.
none of these are true
to create extra moisture
to allow the item to dry so that it does not develop mold or bacteria which will contaminate the item
The best way of performing a search is by covering the area in _______________ .
a systematic way.
a cross linear way
with many people using different techniques.
various ways.
Which search method would be the best to use in a small area?
Spiral
Quadrant or Zone
Strip or Parallel
Grid
The spiral search method works best where?
small outdoor areas with few obstacles
large indoor or outdoor areas with large obstacles
any outdoor scene with obstacles
large indoor or outdoor areas with few obstacles
What is the minimum number of police officers needed for a quadrant or zone search?
1
4
2
5
The strip or parallel search method is used _____________.
for smaller outdoor areas or indoor crime scenes.
for large indoor areas
indoor crime scenes only
large outdoor crime scenes
When evidence may be harder to find because the crime scene may contain a lot of items or debris, which search method would be the best to use?
Spiral
Grid
Strip or Parallel
Quadrant or Zone
In the grid method, one officer searches going right to left, while the other officer searches up and down.
True
False
What is the order that information is processed in the brain?
1. (a)
2. (b)
3. (c)
4. (d)
5. (e)
True or False: All information received by our senses will be put through the filter of our own perception. (think about the five stages of how information is processed in our brain!)
TRUE
FALSE
Eyewitnesses can report what they saw to police in any of these ways (you may pick more than one)
identifiying someone in a photo lineup
giving written or spoken testimony
giving testimony to another witness for them to tell police
identifiying someone in a physical lineup of people
Sort these factors that effect eyewitness (EW) reliability into the following categories:
EW was three feet away from scene
EW saw the crime 1 year ago
EW underwent a traumatic experience during the crime
EW was already familiar with the scene
EW believes the person should be found not guilty
EW saw the crime in a crowded subway car
Suspect had a large scar on their cheek
Suspect was same race as EW
Suspect was wearing sunglasses and baseball cap
Which one of these would make an eyewitness's testimony LESS reliable? You may pick more than one, if appropriate.
High level of focus
Stress
Event happened 5 minutes ago
Motive to lie
Witness saw 10 seconds of the crime
Which of these statements below best describes why any very young or old eyewitness is usually less reliable?
They usually pick the wrong person in the lineup
They have more bias against certain types of suspects
They have alzheimer's or dementia which makes their memory worse
They are more likely to misidentify a suspect if the actual suspect isn't in the lineup
They don't spend as much time thinking about their choice of suspect
If Amelia sees a man pickpocket another woman, and she gets fired up because she is very angry at the increase of theft in her town, would she be a less reliable witness?
No, she is more reliable, because she wants to solve the crime, so she is more likely to cooperate.
No, these thoughts wouldn't make her more or less reliable as a witness.
Yes, because she has bias.
What are the best fill-in-the-blanks for the following: If Kenneth sees a kid he knows from school commiting a crime, he could be a more reliable witness because (a) but he might be less reliable because (b)
Which of these statements about human memory is NOT true?
Every time you remember something, you are only remembering that last time you thought about it
Outside influences like other witnesses and the media can change you memories
When your senses receive information, most of that information doesn't make it into your memory
By not talking to other people, you can prevent your memory from changing over time.
What can investigators do to prevent memory distortion? You may pick more than one.
Ask yes or no questions.
Ask open ended questions.
Talk to witnesses ASAP.
Make sure witnesses discuss their testimonies so that they all agree.
Force witnesses to take lie detector tests
It is best to fill an in-person lineup with the suspect and....
People who don't look like the suspect
People the eyewitness already knows
Additional people suspected of the crime
People who look like the suspect
What should be told to eyewitnesses before they make an identification from a lineup? You may pick more than one, if appropriate.
"You do not need to pick someone."
"The suspect may not be in this lineup"
"Pick anyone you think looks similar to the suspect."
"Any ID you make will be very important to the invesitgation."
How do most people perceive human memory?
a. As a reliable source of information
b. As an inaccurate and unreliable source of information
c. As a combination of reliable and unreliable information
d. As a completely subjective experience
What proposals has The Innocence Project made to improving the accuracy of eyewitness IDs?
a. Implementing stricter guidelines for eyewitness identification procedures
b. Providing training for law enforcement on the fallibility of eyewitness testimony
c. Using sequential lineups instead of simultaneous lineups
d. All of the above
What is one reason why eyewitness testimony is considered a powerful form of evidence?
It is always accurate.
It provides crucial information about a crime.
It is the only form of evidence that can be used in court.
It is easy to obtain.
What is one factor that can influence the accuracy of eyewitness testimony?
The witness's age
The location of the crime
The type of weapon used
The emotion of the witness
What is one step that forensic investigators must take to ensure the reliability of eyewitness testimony?
They must ensure that the witness is not exposed to leading questions.
They must interview the witness several days after the event.
They must rely solely on eyewitness testimony to solve the crime.
They must disregard any physical evidence that contradicts the eyewitness testimony.
All of the following are ways to improve our observational skills except:
be sure to look at the entire area, not just the body, weapons, or signs of break in
observe everything- big and small
when collecting evidence, record only those things that you are sure are important
write down and photograph everything you find
True or False: Studies have shown that eyewitnesses often provide faulty information (most of the time, unintentionally).
True
False
True or False: Eyewitness misidentification is the single greatest cause of wrongful convictions nationwide.
True
False
True or False: Perception can be influenced by prior experiences and expectations.
False
True
