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Forensic Science Chapter 2

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Forensic Science Midterm Chapter 2 Study
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Resumen del Recurso

Pregunta 1

Pregunta
After providing or obtaining medical assistance for the injured and effecting an arrest of suspects (if possible), the first officer arriving at a crime scene should immediately:
Respuesta
  • Search for evidence
  • Secure the scene
  • Make a rough sketch of the scene
  • Take notes

Pregunta 2

Pregunta
The first responding officer must make attempts at the crime scene to detain and question
Respuesta
  • Witnessess
  • Unauthorized personnel
  • Suspects
  • Both A and C

Pregunta 3

Pregunta
Police barricades, and the strategic position of guards, will prohibit access to the crime scene for:
Respuesta
  • Civilians only
  • Civilians and media personnel
  • All law enforcement personnel
  • All unauthorized personnel

Pregunta 4

Pregunta
The conditions at a crime scene can be compromised by all of the following actions EXCEPT:
Respuesta
  • Taking photographs at the crime scene
  • Adjusting the temperature of the crime scene
  • Eating food at the crime scene
  • Turning a faucet on at the crime scene

Pregunta 5

Pregunta
The size and location of the crime scene, as well as the events that occurred there, will determine:
Respuesta
  • The kind of evidence that will be missing
  • The kind of search pattern that is used to locate evidence
  • The amount of care that must be taken during the crime scene search
  • The time at which the crime scene is searched

Pregunta 6

Pregunta
Which search patter would be best suited for a crime scene where many investigators are available to search a large area?
Respuesta
  • Spiral
  • Grid
  • Line
  • Zone

Pregunta 7

Pregunta
The purpose of the crime scene search is to locate:
Respuesta
  • DNA-containing evidence
  • All physical evidence
  • Fingerprint evidence
  • Bloodstain patterns

Pregunta 8

Pregunta
The most basic methods of crime scene recording do NOT include:
Respuesta
  • Note-taking
  • Photographs
  • Narrated videotapes
  • Infrared analysis

Pregunta 9

Pregunta
If the crime scene includes a dead body, the photographer should:
Respuesta
  • Determine the time of death
  • Attempt to identify the victim
  • Document all forensic personnel at crime scene
  • Depict injuries and weapons at scene

Pregunta 10

Pregunta
A rough sketch need NOT include a:
Respuesta
  • Sketch of the suspect(s)
  • Compass heading designating north
  • Date, location, and time of the incident
  • Location of all recovered physical evidence

Pregunta 11

Pregunta
CAD programs enhance the ability to:
Respuesta
  • Take complete notes
  • Develop photographs
  • Edit video tape
  • Produce a finished crime scene sketch

Pregunta 12

Pregunta
Which statement about note-taking is NOT true?
Respuesta
  • The individual who packaged and marked items of evidence should be recorded
  • Note-taking is done after all crime scene processing has been completed
  • Notes should included location of physical evidence recovered
  • Disposition of items after collection must be included

Pregunta 13

Pregunta
Which crime scene search pattern would absolutely require more than one investigator?
Respuesta
  • Spiral
  • Line
  • Grid
  • Zone

Pregunta 14

Pregunta
Physical evidence at a hit-and-run scene should include
Respuesta
  • Fiber and tissue
  • Glass fragments
  • Fabric impressions
  • All of the above

Pregunta 15

Pregunta
The crime scene notes must accurately record:
Respuesta
  • The tasks assigned each investigator
  • Personnel arrivals and departures from the scene
  • Descriptions of evidence present at the crime scene
  • All of the above

Pregunta 16

Pregunta
The advantages of tape-recording crime scene notes on an audio tape include all of the following EXCEPT:
Respuesta
  • The notes can be recorded at the crime laboratory instead of at the crime scene.
  • The investigator's hand are free to carry out other tasks while recording the notes
  • Audio tapes have the added security feature of preventing erasure or taping over if the security tab on the tape
  • The notes are recording as the observation are made

Pregunta 17

Pregunta
In digital photography, light is recorded as a specific charge on millions of tiny:
Respuesta
  • Silver halide grains
  • Charge coupled devices
  • Semi-conductors
  • Pixels

Pregunta 18

Pregunta
Digital crime scene photographs require special measures to assure their admissibility tin court due to:
Respuesta
  • Their poor quality
  • The inability to manipulate the images
  • The ability to manipulate the images
  • All of the above

Pregunta 19

Pregunta
Videotapes of the crime scene:
Respuesta
  • Can be used in place of notes and photographs
  • Must be complemented by a hard copy of notes and separate still photographs
  • Are required in all jurisdictions
  • Are not admissible in court due to the poor image quiality

Pregunta 20

Pregunta
Crime scene sketches serve a unique purpose in permanently documenting the location of evidence
Respuesta
  • Processed at the crime scene
  • Containing drug evidence
  • Not documented in photographs
  • Collected and removed from the crime scene

Pregunta 21

Pregunta
From the choices, select the one correct physical evidence collection procedure
Respuesta
  • Bloodstained garments should be packaged separately in paper bags
  • Items recovered from scene of a murder should be sent along with the body to the Medical Examiner
  • All items collected from the same grid area should be packaged together.
  • The victim's clothing should be obtained at the crime scene and vacuumed to obtain trace evidence

Pregunta 22

Pregunta
Investigators should collect possible carriers of trace evidence which may include:
Respuesta
  • Vacuum sweepings
  • Clothing
  • Fingernail scrapings
  • All of the above

Pregunta 23

Pregunta
Changes to evidence, such as contamination, can be prevented by handling evidence with:
Respuesta
  • Latex gloves
  • Dry, bare hands
  • Disposable forcepts
  • A and C

Pregunta 24

Pregunta
Charred debris from an arson scene should be:
Respuesta
  • Placed together with similar items in a paper bag
  • Placed in Ziploc® bags.
  • Packaged in airtight glass jars
  • Aired out before packing in plastic wrap

Pregunta 25

Pregunta
A victim's fingernail scrapings would be correctly packaged in:
Respuesta
  • A druggist fold
  • A plastic Ziploc® bag
  • Sealed, airtight containers
  • Both b and c

Pregunta 26

Pregunta
The successful outcome of a criminal investigation is almost always directly related to:
Respuesta
  • The manner in which the evidence is collected and preserved
  • The number of people employed in the crime lab
  • The volume of the physical evidence collected
  • Whether the crime is considered high-profile

Pregunta 27

Pregunta
A properly maintained chain or custody is NOT the responsibility of the:
Respuesta
  • Crime scene processor
  • Evidence clerk
  • Forensic technician
  • Trial judge

Pregunta 28

Pregunta
Success in the recognition and collection of physical evidence is determined primarily by the:
Respuesta
  • Notoriety of the case
  • Time available to the evidence collectors
  • Skills of personnel processing the crime scene
  • Type of evidence involved

Pregunta 29

Pregunta
The collection of standard reference samples at the crime scene is important because they:
Respuesta
  • Permit comparisons to be made with the evidence
  • Are obtained only from suspects in cases of violent assault
  • Serve as a source of extra test material if required in the crime lab
  • All of the above

Pregunta 30

Pregunta
The presence of blood and semen at crime scenes exposes investigator to:
Respuesta
  • Hepatitis B
  • AIDS
  • Both a and b
  • Neither a nor b

Pregunta 31

Pregunta
The removal of any evidence from a person or from the scene of crime must be done in a conformity with the privileges of which amendment to the Constitution?
Respuesta
  • Sixth
  • Fourth
  • Fifth
  • First

Pregunta 32

Pregunta
The police are NOT required to obtain a search warrant if they are:
Respuesta
  • Unable to locate a judge to issue a warrant
  • Certain their suspect is guilty
  • In the process of a legal arrest
  • Investigating the murder of a fellow officer

Pregunta 33

Pregunta
Which of the following is U.S. Supreme Court decision which dealt with the impropriety of the warrantless collection of physical evidence at a homicide scene?
Respuesta
  • Mapp v. U.S
  • Frye v. U.S.
  • People v. Wilkens
  • Mincey v. Arizona

Pregunta 34

Pregunta
Which type of evidence must be packaged separately from other evidence?
Respuesta
  • Biological stain evidence
  • DNA-containing evidence
  • Arson evidence
  • All of the above

Pregunta 35

Pregunta
Which of the following items is likely to contain DNA evidence?
Respuesta
  • A self-adhesive mailing stamp
  • A bed sheet
  • A blue rug fiber
  • A glass fragment

Pregunta 36

Pregunta
The evidence collector must take extraordinary care to avoid potential contamination by transferring DNA onto objects of evidential value by:
Respuesta
  • Reusing shoe covers
  • Packaging items containing potential DNA evidence in airtight bags
  • Wearing a face mask
  • Using the same pair of forceps to collect all evidence at the crime scene

Pregunta 37

Pregunta
The best way to guarantee that the evidence will withstand inquiries about what happened to it from the time of its finding to its presentation in court is to:
Respuesta
  • Properly record the crime scene
  • Properly mark evidence for identification
  • Properly complete evidence submission forms
  • All of the above

Pregunta 38

Pregunta
When biological samples of unknown origin are discovered at a crime scene, investigators:
Respuesta
  • Should assume no pathogens are present and treat the samples as such
  • Should allow only trained hazardous materials teams to handle the evidence
  • Should assume pathogens are present and treat the sample as such
  • Should package them in plastic bags

Pregunta 39

Pregunta
Special circumstances at a crime scene may require the use of the following for evidence collection, EXCEPT:
Respuesta
  • Particle masks
  • Biohazard packages
  • Coveralls
  • All of the above may be required

Pregunta 40

Pregunta
“The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizure…” is provided for in the United States by the:
Respuesta
  • Frye standard
  • Fourth Amendment
  • Declaration of Independence
  • Second Amendment

Pregunta 41

Pregunta
Warrantless searches are permitted under law in all of the following situations EXCEPT:
Respuesta
  • The existence of emergency circumstances
  • The injury or death of a police officer or law enforcement employee
  • The consent of the parties involved
  • The need to prevent the immediate loss of evidence

Pregunta 42

Pregunta
The manner of collecting and reserving physical evidence at a crime scene is determined by:
Respuesta
  • The circumstances of the crime
  • The importance of the case
  • The number of evidence collectors present at the crime scene
  • The nature of the evidence

Pregunta 43

Pregunta
Physical evidence may be obtained from
Respuesta
  • The crime scene
  • The victim
  • The suspect
  • All of the above

Pregunta 44

Pregunta
All of the following ites may be placed in an airtight container EXCEPT:
Respuesta
  • Charred debris recovered from a fire
  • Blood-stained clothing
  • Glass
  • Hairs and fibers

Pregunta 45

Pregunta
The evidence collector is NOT concerned with
Respuesta
  • Maintaining the chain of custody
  • Utilizing the proper packaging material for evidence
  • Labeling evidence
  • Determining the natural variations that exist in physical evidence

Pregunta 46

Pregunta
The conditions at a crime scene can be compromised by all of the following action EXCEPT
Respuesta
  • Taking photographs at the crime scene
  • Eating food at the crime scene
  • Turning on a faucet on the crime scene
  • Smoking at the crime scene

Pregunta 47

Pregunta
The initial survey of the crime scene carried out by the lead investigator is called:
Respuesta
  • The spiral search
  • The initial survey
  • The walk-through
  • The crime scene search

Pregunta 48

Pregunta
Which crime scene search pattern does NOT require more than one invesigator
Respuesta
  • Wheel
  • Line
  • Grid
  • Zone

Pregunta 49

Pregunta
What is a disadvantage to the spiral search pattern
Respuesta
  • Evidence could be missed
  • It requires several investigators
  • It does not work for outdoors scenes
  • It is dependent on the boundaries of the scene

Pregunta 50

Pregunta
The center of the crime scene, which is always included within the crime scene's boundary, is:
Respuesta
  • The area where the first responder entered the scene
  • The area where the witnesses were located
  • The area where the command center will be located
  • The area where the crime occurred

Pregunta 51

Pregunta
Evidence commonly located during a vehicle search includes all of the following EXCEPT:
Respuesta
  • Questioned documents
  • Fibers
  • Paint evidence
  • Broken glass

Pregunta 52

Pregunta
To formulate a successful strategy for recovering relevant physical evidence at crime scenes, the investigator must ultimately rely on:
Respuesta
  • Reference material
  • Experience
  • Training
  • The lead investigator

Pregunta 53

Pregunta
The search pattern in which one or two investigators starts at the boundary at one end of the scene and walk straight across to the other side is:
Respuesta
  • Line
  • Grid
  • Quadrant
  • Wheel

Pregunta 54

Pregunta
The search pattern that employs two people performing line searches that originate from adjacent corners is:
Respuesta
  • Line
  • Grid
  • Spiral
  • Wheel

Pregunta 55

Pregunta
Which search pattern employs several people moving from the boundary straight toward the center of the scene (inward) or from the center straight to the boundary(outward)?
Respuesta
  • Quadrant
  • Grid
  • Spiral
  • Wheel

Pregunta 56

Pregunta
It is permissible for officers at the scene to:
Respuesta
  • Eat
  • Drink
  • Smoke
  • None of the above

Pregunta 57

Pregunta
Which search pattern is more reliant on the boundaries established?
Respuesta
  • Line
  • Spiral
  • Wheel
  • Quadrant

Pregunta 58

Pregunta
Officers should attempt to locate tool marks at the point of entry during the investigation of a:
Respuesta
  • Homicide
  • Burglary
  • Hit and run
  • Assault

Pregunta 59

Pregunta
The location of an item of evidence on a crime scene sketch is shown by its distance from points of reference that:
Respuesta
  • Are fixed or immovable
  • Are within ten feet of the item
  • Are located outside the boundaries of the crime scene
  • Can be transported to the crime laboratory

Pregunta 60

Pregunta
At an arson scene, the collection of a substrate control would require the arson investigator to:
Respuesta
  • Collect a sample from the center of a potential accelerate stain
  • Collect samples of surface material from areas far away from the fire's origin.
  • Collect a piece of the surface material near the fire's origin that he or she believes was not exposed to the accelerant
  • Collect a sample of the vapors at the fire origin

Pregunta 61

Pregunta
Success in the recognition and collection of physical evidence is determined primarily by the:
Respuesta
  • Notoriety of the case
  • Time available to the evidence collector
  • Skill of personnel processing the crime scene
  • Type of evidence involved
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