Unit 5: Reconstruction and Evaluation of Crime Scene - Practice Quiz

1 What is crime scene reconstruction?

2 The famous principle 'every contact leaves a trace' was proposed by which scientist?

3 Locard's Exchange Principle is most useful for establishing which of the following?

4 Which type of evidence physically ties a suspect to a crime scene?

5 Reconstructing the pattern of bloodstains at a scene is known as:

6 The first step in reconstructing a crime scene is usually to:

7 Which of the following is an example of trace evidence used to link a suspect to a scene?

8 Reconstruction primarily relies on which type of reasoning?

9 A theory of the crime developed during reconstruction should be:

10 Which of these can help establish the sequence of events at a crime scene?

11 Finding the victim's blood on a suspect's clothing helps establish:

12 What is the main goal of connecting various evidences during reconstruction?

13 Which type of pattern evidence can indicate the direction of movement of a suspect or victim?

14 Evidence that supports a conclusion indirectly, requiring inference, is called:

15 Why is proper documentation important before reconstruction?

16 The three key elements linked during crime scene reconstruction are the:

17 Which of the following would weaken a reconstruction?

18 A reconstruction that fits all the physical evidence is considered:

19 Which evidence can directly link a specific individual to a scene?

20 Evaluation of a crime scene reconstruction mainly checks whether the conclusion is:

21 During reconstruction, a chain of physical evidence connects the suspect's clothing fibers to the victim's body and the victim's blood to the suspect's shoes. This mutual exchange of trace material is best explained by which principle?

22 An investigator finds bloodstains at the scene, on the victim, and on the suspect. To confirm all three are linked to the same event, which analysis provides the strongest individualizing connection?

23 Bloodstain pattern analysis at a scene shows medium-velocity impact spatter with directional tails pointing away from a wall. What does this most directly help reconstruct?

24 A footwear impression at the scene matches the class characteristics of the suspect's shoe but also shows a unique cut on the sole matching the suspect's shoe. This finding allows the examiner to establish which type of link?

25 In reconstructing a shooting, an investigator determines the sequence of shots and shooter position using bullet trajectory analysis. Which technique is most commonly employed for this?

26 A suspect claims he was never at the crime scene, but soil found in his tire treads is compositionally consistent with soil unique to the scene. This evidence best serves to establish a link between which two elements?

27 During reconstruction, the sequence in which two overlapping fingerprints and a bloodstain were deposited must be determined. Analyzing which physical relationship best establishes this order of deposition?

28 A reconstruction requires establishing whether a wound was inflicted before or after death to link a suspect's alibi timing. Which finding indicates the injury occurred while the victim was alive?

29 An investigator uses DNA obtained from a cigarette butt at the scene, matches it to the suspect, and matches epithelial cells under the victim's fingernails to the same suspect. What conclusion is best supported?

30 While reconstructing events, an examiner correlates the direction of glass fracture radial and concentric cracks to determine the side from which force was applied. This helps establish which fact?

31 A crime scene reconstruction reveals that the physical evidence contradicts the suspect's account of a self-defense struggle. This use of reconstruction primarily serves to:

32 Gunshot residue (GSR) is detected on the back of a suspect's hand. In reconstructing a shooting, this finding most strongly supports which inference?

33 In linking evidence, an examiner notes that a torn piece of fabric found in the victim's grip physically fits the tear in the suspect's jacket. This type of match is known as a:

34 During reconstruction, entomological evidence (insect life cycle stages) on a body is used mainly to help establish which factor in linking the crime timeline?

35 A reconstruction shows drag marks leading from the living room to the bedroom, with a blood trail matching the victim. What event does this evidence most directly reconstruct?

36 To link a suspect's vehicle to a hit-and-run victim, paint transfer is compared. Cross-transfer of paint from vehicle to victim's clothing and clothing fibers onto the vehicle bumper best demonstrates:

37 In reconstructing a stabbing, comparing the dimensions and shape of wounds with a recovered knife helps establish which link?

38 An investigator arranges all analyzed evidence into a logical sequence of before, during, and after the crime. This overall process in crime scene reconstruction is called:

39 A single hair recovered from the victim's hand is examined. Which analysis would most reliably link this hair to a specific individual?

40 During reconstruction, an examiner concludes that a scene was staged to look like a burglary. Which observation would most strongly support this staging conclusion?

41 A body is found with a low-velocity blood spatter pattern on a wall at cm height, but the impact spatter analysis using the formula yields an angle of impact of for droplets originating from a point of convergence located cm high. Which reconstruction inference is most defensible?

42 During reconstruction, a suspect's shoe transfers soil to the victim's carpet (Locard exchange). To conclusively link the suspect to the scene rather than mere presence at a common location, which combination of evidence provides the strongest sequential linkage?

43 A reconstruction must sequence three events: (1) gunshot, (2) blood pooling, (3) drag marks. The drag marks pass through a partially clotted blood pool and smear it, while cast-off stains overlie the drag smears. What is the correct temporal sequence?

44 In evaluating a staged scene, an investigator notes that the victim's hypostasis (livor mortis) is fixed on the anterior surface, yet the body was found supine. Which reconstruction conclusion is best supported?

45 A stringing/trajectory reconstruction places two bullet paths converging outside the room through a window. Both entry angles are shallow ( downward). Which shooter position is most consistent with the physical evidence?

46 Two DNA profiles are recovered: the victim's blood under the suspect's fingernails and the suspect's epithelial cells on the victim's neck. For an activity-level (not source-level) linkage supporting a strangulation reconstruction, which factor is MOST critical to evaluate?

47 A void pattern (absence of blood) is observed within an otherwise uniform impact spatter on the floor. During reconstruction this void is best interpreted as:

48 Given a fatal fall/push ambiguity, biomechanical reconstruction shows the victim landed m horizontally from the base of a m ledge. Using with , the required horizontal launch velocity is approximately:

49 In a reconstruction, gunshot residue (GSR) is found on the victim's dominant hand but absent from the suspect. Considering all confounders, the most rigorous interpretation is:

50 A forward spatter and back spatter are both present around a gunshot entry wound on a door. For reconstructing the shooter-target-surface geometry, back spatter is most useful because it:

51 Entomological reconstruction estimates a post-mortem interval (PMI) of days from blowfly larval development, but decomposition staging suggests only days. The body was found in an air-conditioned room. Which reconciliation is most sound?

52 During reconstruction, fibers from the suspect's jacket are on the victim, and victim's hairs are on the suspect—a two-way transfer. The evidentiary strength of this reciprocal exchange primarily lies in:

53 A cast-off blood pattern shows a series of stains that decrease in size and increase in spacing along an arc. This trend allows reconstruction of:

54 In evaluating a scene, the investigator applies the concept that the reconstruction hypothesis must survive attempts at falsification. Which practice best embodies this scientific standard?

55 Passive drip stains show a satellite spatter pattern with spines radiating outward. Comparing two drip sites, Site A has longer spines and more satellites than Site B on the same surface. The most valid inference is:

56 A reconstruction integrates a bullet hole in a window, a defect in an interior wall, and a projectile in the floor. To establish the true trajectory rather than an apparent one, the analyst must primarily correct for:

57 Transfer bloodstains include a partial bloody shoeprint pointing toward an exit, overlain on a swipe pattern. Reconstructing egress, the analyst concludes:

58 A suspect claims a knife wound was self-inflicted during a struggle. Reconstruction reveals hesitation marks are absent, the wound track is deep and angled from behind, and defensive wounds appear on the victim's forearms. The strongest integrated conclusion is:

59 When linking a suspect to a scene using a fingerprint in blood, the reconstruction value exceeds a latent print in dust primarily because the bloody print:

60 A comprehensive reconstruction weighs multiple independent evidence types (DNA, ballistics, bloodstain patterns, trace). When these lines converge on the same scenario, the overall inferential strength increases because: