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Unit 1: Understanding crime scene - Practice Quiz

FSC102 — Crime Scene Investigation 60 Questions
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1 What is a crime scene?

introduction to crime scene Easy
A. The courtroom where a trial is held
B. Any location where a crime has occurred or is suspected to have occurred
C. The laboratory where evidence is tested
D. The police station where a case is registered

2 Which principle states that "every contact leaves a trace"?

introduction to crime scene Easy
A. Gross Principle
B. Kirk's Principle
C. Newton's Third Law
D. Locard's Exchange Principle

3 A crime scene located inside a building or a room is best classified as which type?

types of crime scene Easy
A. Conveyance crime scene
B. Mobile crime scene
C. Outdoor crime scene
D. Indoor crime scene

4 The scene where the actual crime took place is called the:

types of crime scene Easy
A. Secondary crime scene
B. Auxiliary crime scene
C. Tertiary crime scene
D. Primary crime scene

5 A crime that occurs inside a moving vehicle is an example of which type of scene?

types of crime scene Easy
A. Indoor crime scene
B. Conveyance (mobile) crime scene
C. Primary static scene
D. Outdoor fixed scene

6 What is the main purpose of evaluating a crime scene?

evaluating crime scene Easy
A. To announce the verdict of the case
B. To arrest the suspect immediately
C. To determine the extent of the scene and plan the investigation
D. To clean up the scene for reuse

7 During the initial evaluation, an investigator should first:

evaluating crime scene Easy
A. Assess the scene for safety and hazards
B. Interview neighbours in detail
C. Collect all evidence quickly
D. Release the scene to the public

8 Which of the following is a key step in processing a crime scene?

processing crime scene Easy
A. Systematic search, collection, and preservation of evidence
B. Allowing bystanders to touch objects
C. Deleting all photographs taken
D. Ignoring small trace materials

9 Which search pattern moves in a circular manner outward or inward from a central point?

processing crime scene Easy
A. Zone search
B. Line search
C. Spiral search
D. Grid search

10 What is the main reason for securing a crime scene?

securing the scene of crime Easy
A. To let relatives search the area
B. To prevent contamination and preserve evidence
C. To allow media to take photographs
D. To speed up cleaning the location

11 Which item is commonly used to establish a physical boundary around a crime scene?

securing the scene of crime Easy
A. Camera tripod
B. Barrier tape (crime scene tape)
C. Evidence bags
D. Fingerprint powder

12 Which of the following is a recognised method of documenting a crime scene?

documenting the crime scene Easy
A. Notes, sketches, photographs, and videos
B. Only witness memory
C. Only fingerprint powder
D. Only verbal descriptions

13 Why is documentation of a crime scene important?

documenting the crime scene Easy
A. It replaces the need to collect evidence
B. It creates a permanent, accurate record of the scene
C. It allows the scene to be reopened to the public
D. It guarantees a conviction in court

14 When should an investigator begin making notes at a crime scene?

note making Easy
A. Only when the case reaches court
B. Only after returning to the office
C. As soon as they arrive and observe the scene
D. Only after all evidence is collected

15 Which detail should crime scene notes typically include?

note making Easy
A. Date, time, weather, and observations
B. Only the final verdict
C. Only the officer's opinions
D. Only the suspect's name

16 What is the main advantage of a crime scene sketch?

sketching Easy
A. It replaces photographs entirely
B. It records sound at the scene
C. It analyses DNA samples
D. It shows the accurate spatial relationship between objects

17 A quick sketch drawn at the scene without exact scale is called a:

sketching Easy
A. Digital sketch
B. Finished sketch
C. Perspective sketch
D. Rough sketch

18 In crime scene photography, which sequence of shots is generally followed?

photography Easy
A. Close-up, then no other shots
B. Random shots in any order
C. Only aerial shots
D. Overall, mid-range, and close-up

19 Why is a scale (ruler) placed next to an item in a close-up photograph?

photography Easy
A. To make the photo look professional
B. To measure the room temperature
C. To hide part of the evidence
D. To show the true size of the evidence

20 What is a key advantage of videography at a crime scene?

videography Easy
A. It analyses fingerprints automatically
B. It collects physical evidence
C. It captures a continuous, moving record of the scene
D. It replaces the need for securing the scene

21 An investigator arrives at a location where a burglary occurred, but the stolen goods were later found and abandoned in a nearby park. According to crime scene classification, how should the park be treated?

introduction to crime scene Medium
A. As a tertiary scene that can be ignored
B. As a secondary crime scene linked to the primary scene
C. As the primary crime scene of the burglary
D. As an unrelated scene requiring no investigation

22 A body is discovered in a car, and evidence suggests the victim was killed elsewhere and then transported. How would forensic experts classify the car in this scenario?

types of crime scene Medium
A. A primary indoor crime scene
B. A mobile or conveyance crime scene
C. An outdoor open crime scene
D. A macroscopic scene only

23 During scene evaluation, an investigator notices the presence of forced entry marks but no items appear stolen. What is the most appropriate reasoning during this evaluation?

evaluating crime scene Medium
A. Conclude immediately that no crime occurred
B. Consider that the crime may be staged to mislead investigators
C. Close the scene since nothing was taken
D. Assume the entry marks are irrelevant to the case

24 While processing a scene, an officer must decide the order of evidence collection. Which principle should guide the sequence?

processing crime scene Medium
A. Collect evidence closest to the entrance first
B. Collect the largest items before anything else
C. Collect biological evidence last regardless of fragility
D. Collect the most fragile and transient evidence first

25 The first officer establishes a perimeter but soon realizes additional evidence lies outside it. What is the correct action?

securing the scene of crime Medium
A. Expand the perimeter to include the new evidence
B. Reduce the perimeter to focus resources
C. Ignore the outside evidence to preserve the original boundary
D. Move the evidence inside the existing perimeter

26 Which combination best ensures a complete and reliable documentation of a crime scene?

documenting the crime scene Medium
A. A single overview sketch of the scene
B. Only written notes to avoid duplication
C. Only photographs, since they capture everything
D. Notes, sketches, photographs, and video used together

27 An investigator's field notes describe an item as 'a red-handled knife found near the doorway at 10:42 AM.' Why is including the time important in such notes?

note making Medium
A. It determines the market value of the item
B. It establishes a chronological record supporting the chain of custody
C. It identifies the manufacturer of the knife
D. It replaces the need for photographs

28 An investigator sketches a room using the rectangular coordinate method. What does this method primarily rely on?

sketching Medium
A. Measuring an object's distance from two fixed perpendicular walls
B. Measuring from a single fixed reference point using angles
C. Estimating distances by pacing across the room
D. Drawing the object without any reference measurements

29 The triangulation method is chosen to fix the position of a weapon in an outdoor field with no walls. Why is this method most suitable here?

sketching Medium
A. It uses two fixed points to measure distances to the object
B. It relies on GPS coordinates only
C. It requires perpendicular walls for reference
D. It measures a single distance from the center of the scene

30 A photographer includes a ruler or scale in a close-up photo of a bloodstain. What is the primary purpose of this scale?

photography Medium
A. To identify the type of camera used
B. To improve the color balance of the image
C. To allow accurate measurement of the item's actual size
D. To mark ownership of the photograph

31 Crime scene photography usually follows a sequence of overall, mid-range, and close-up shots. What is the main reason for this progression?

photography Medium
A. To photograph only the most valuable items
B. To speed up the documentation process
C. To reduce the total number of photographs needed
D. To establish spatial context before showing specific details

32 When recording video of a crime scene, why is it generally recommended to avoid narrating with audio commentary?

videography Medium
A. Narration violates copyright of the footage
B. Sound reduces the resolution of the video
C. Recorded opinions may be inadmissible or prejudicial in court
D. Audio recording drains the camera battery too quickly

33 The first officer arrives to find an injured victim still alive at the scene. What should be the officer's immediate priority?

role of first arriving officer at crime scene Medium
A. Begin photographing the scene immediately
B. Start collecting nearby evidence
C. Provide or summon medical aid for the victim
D. Interview witnesses before doing anything else

34 After ensuring safety, the first officer must control access to the scene. Which record best supports accountability for who enters and exits?

role of first arriving officer at crime scene Medium
A. A photograph of the perimeter tape
B. A personal memory of visitors
C. A list of stolen items
D. A crime scene entry and exit log

35 A crime involves an online fraud where transactions were carried out digitally. How is this scene best categorized?

types of crime scene Medium
A. A macroscopic physical scene
B. A conveyance crime scene
C. An outdoor crime scene
D. A virtual or digital crime scene

36 During evaluation, distinguishing between the 'macroscopic' and 'microscopic' scene helps investigators primarily by allowing them to:

evaluating crime scene Medium
A. Recognize both large objects and trace evidence during search
B. Photograph only microscopic evidence
C. Focus only on the largest visible items
D. Ignore small evidence to save time

37 An investigator wears gloves and changes them between handling different items during processing. What contamination risk is this practice preventing?

processing crime scene Medium
A. Damage to the gloves themselves
B. Fading of latent fingerprints on gloves
C. Loss of the investigator's own DNA
D. Cross-transfer of evidence between items

38 Why must documentation of a crime scene be completed before evidence is collected or moved?

documenting the crime scene Medium
A. To avoid using too many storage bags
B. To let photographers rest before collection
C. To reduce the workload of the collection team
D. To preserve the original position and context of all evidence

39 A single-path route (common approach path) is established at a secured scene. What is its main purpose?

securing the scene of crime Medium
A. To indicate the location of the body
B. To provide the quickest exit for officers
C. To mark where evidence must be placed
D. To minimize contamination by controlling movement through the scene

40 A finished (final) sketch differs from a rough sketch mainly because the finished sketch is:

sketching Medium
A. Drawn to scale and prepared later for presentation
B. Created only when photographs are unavailable
C. Never used in court proceedings
D. Made hastily at the scene with estimated distances

41 A detective argues that a location where a victim was abducted, a second where they were held, and a third where the body was dumped should all be treated as a single crime scene for evidentiary purposes. Which principle best refutes this reasoning?

introduction to crime scene Hard
A. Secondary locations are irrelevant unless physical evidence is visibly present
B. All connected locations form one continuous scene since they relate to the same criminal act
C. Only the location where death occurred qualifies as the true crime scene
D. Each location constitutes a distinct scene requiring independent processing, as evidence transfer and chain of custody must be preserved separately

42 Investigators find the point of a fatal shooting outdoors, but the suspect fled indoors leaving a trail of blood into a residence. How should these be classified, and what is the primary processing implication?

types of crime scene Hard
A. Only the outdoor scene matters since the crime was completed there
B. Primary scene (shooting site) and secondary scene (residence); the outdoor scene faces greater risk of environmental loss and should be prioritized
C. Both are primary scenes and should be processed simultaneously with equal priority
D. The residence is the primary scene because it contains the fleeing suspect's traces

43 During scene evaluation, an investigator notes forced entry marks on a door but no disturbance inside and valuables untouched. What is the most defensible interpretive conclusion at this stage?

evaluating crime scene Hard
A. Treat the inconsistency as a possible staged scene and document without prematurely committing to a theory
B. Assume the occupant fabricated the entry marks
C. Conclude a burglary was interrupted before completion
D. Rule out any crime since nothing was stolen

44 At an indoor scene containing latent fingerprints, wet bloodstains, and a firearm, which sequencing of collection best minimizes evidence loss?

processing crime scene Hard
A. Photograph everything, then collect transient/fragile evidence (wet blood) first, followed by fingerprints, then the firearm
B. Lift fingerprints first since they degrade fastest, then collect blood and the firearm
C. Collect the firearm first for ballistic safety, then blood, then fingerprints
D. Collect items in order of size, largest to smallest, after photography

45 A first officer secures a scene with a single perimeter, but the media, supervisors, and paramedics all breach it. What layered strategy would have best preserved integrity?

securing the scene of crime Hard
A. Rely on verbal warnings rather than physical barriers
B. Set a wider single perimeter far from the core evidence
C. Allow only supervisors inside a single tight perimeter
D. Establish inner, outer, and intermediate perimeters with a controlled access point and entry log

46 Two forms of documentation conflict: the sketch shows a knife 2 m from the body, but a photograph appears to show it closer. Which resolution reflects best documentation practice?

documenting the crime scene Hard
A. Rely on measured distances recorded in notes and the sketch, since photographs can distort perspective and scale
B. Average the two apparent distances to estimate placement
C. Discard both and rely on officer memory
D. Trust the photograph because it is a direct optical record

47 An investigator writes in field notes: "Suspect was clearly nervous and obviously guilty when questioned." Why is this problematic and how should it be corrected?

note making Hard
A. It is acceptable because the officer's professional judgment is admissible
B. It records conclusions rather than observations; notes should state observable behavior such as trembling hands or avoided eye contact
C. It should be deleted entirely rather than rephrased
D. It is fine as long as it is timestamped

48 To fix the position of a small item of evidence in a rectangular room using two fixed reference points and measured distances, which sketching method is being applied?

sketching Hard
A. Cross-projection method
B. Triangulation method
C. Polar coordinate method
D. Baseline (rectangular coordinate) method

49 When documenting bloodstains on both the walls and floor of a room in a single sketch, which technique is most appropriate?

sketching Hard
A. Standard overhead sketch showing only the floor plan
B. Cross-projection (exploded) sketch that folds the walls outward into the plane of the floor
C. Perspective sketch drawn from the doorway
D. Elevation sketch of a single wall

50 Why must a photographic scale (ruler) be placed on the same plane as an item of evidence, and how should the shot be composed?

photography Hard
A. The camera's film/sensor plane must be parallel to the evidence and scale to avoid perspective distortion of measurements
B. The scale should be photographed separately from the evidence
C. The scale must be larger than the evidence to ensure visibility
D. The scale should be angled toward the light to reduce glare

51 A crime scene photographer follows the progression of overall, mid-range, and close-up shots. What is the primary evidentiary purpose of this sequence?

photography Hard
A. To reduce reliance on sketches and notes
B. To capture the scene faster using fewer total photographs
C. To satisfy legal minimums for photo counts
D. To establish spatial context and allow each item to be located within the broader scene

52 Which practice most strengthens the evidentiary reliability of crime scene videography?

videography Hard
A. Editing the footage to remove irrelevant sections before submission
B. Filming rapidly to minimize battery use and file size
C. Adding background music and captions to clarify events
D. Recording a continuous, slow, narrated pass with no editing and an accurate embedded timestamp

53 A first responding officer arrives to find a critically injured victim lying atop apparent physical evidence. What is the correct priority and its justification?

role of first arriving officer at crime scene Hard
A. Remove the victim quickly to a cleaner area to protect the evidence
B. Photograph the scene fully before providing any assistance
C. Preserve the evidence untouched and wait for paramedics before moving the victim
D. Render medical aid to preserve life, while noting and minimizing disturbance to any evidence moved

54 The first officer establishes a perimeter but later cannot explain who entered and left. Which single omission most undermines the investigation, and how is it prevented?

role of first arriving officer at crime scene Hard
A. Failure to maintain a crime scene entry/exit log at the access point
B. Failure to photograph the perimeter tape
C. Failure to interview neighbors immediately
D. Failure to widen the perimeter

55 While evaluating a scene, an investigator must decide the search pattern for a large outdoor field with multiple searchers. Which pattern offers systematic, overlapping coverage suited to this context?

evaluating crime scene Hard
A. Line search performed once in a single direction
B. Grid (double strip) search, where the area is covered in two perpendicular sets of parallel lanes
C. Zone search dividing the area into quadrants for one searcher each
D. Spiral search moving outward from a single center

56 An officer wants to touch a suspected firearm to check if it is loaded before photography. Why is this a critical processing error?

processing crime scene Hard
A. It is acceptable if the officer wears gloves
B. It disturbs the item before documentation and risks destroying latent prints, trace evidence, and original position
C. It is acceptable because officer safety always overrides documentation
D. It is only an error if the firearm is later found to be unloaded

57 Why is it insufficient to rely on photographs alone to document a crime scene, even with high-resolution imaging?

documenting the crime scene Hard
A. Photos cannot capture color accurately
B. Photos are inadmissible without a witness present
C. Photos lack accurate measurements and full spatial relationships, so notes and sketches are needed to complement them
D. High-resolution files are too large for court records

58 An investigator classifies a scene as both an "active" and an "organized" scene. Which distinction correctly separates these two classification bases?

types of crime scene Hard
A. "Active/passive" describes ongoing threat status, while "organized/disorganized" describes offender behavior reflected in scene condition
B. "Active" refers to indoor scenes and "organized" to outdoor scenes
C. "Organized" describes the officer's processing method, not the scene
D. Both terms describe the same property using different words

59 If an error is made in handwritten crime scene notes, what is the legally sound method of correction?

note making Hard
A. Draw a single line through the error, initial and date it, and write the correction nearby
B. Use correction fluid to cover the mistake cleanly
C. Rewrite the entire page to avoid any visible errors
D. Erase the error completely and write the correct entry

60 The Locard Exchange Principle underpins crime scene investigation. Which scenario best illustrates a sophisticated application of this principle?

introduction to crime scene Hard
A. A witness identifies the suspect from a lineup after the crime
B. Fibers from a victim's carpet are found on a suspect's shoes while carpet fibers matching the suspect's coat are found at the scene
C. A confession is obtained that matches the physical layout of the scene
D. The suspect's motive is inferred from the disorder of the scene
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Unit 2