Unit 6: Advancement in Impression Analysis - Practice Quiz

1 What is the primary purpose of forensic photography in impression analysis?

2 When photographing impression evidence, a scale is placed next to the impression primarily to record which factor?

3 Which lighting technique uses light at a low angle to highlight the ridges and depths of an impression?

4 What is the main goal of image enhancement in impression analysis?

5 Which common software is widely used for forensic image enhancement of impressions?

6 Adjusting the contrast of a fingerprint image helps to do what?

7 Forensic facial reconstruction is primarily used to help with what?

8 Which structure forms the primary foundation for facial reconstruction?

9 Which of the following is a modern method of performing facial reconstruction?

10 Tissue depth markers used in facial reconstruction represent what?

11 Analyzing a combination of impression evidences means examining what together?

12 Which of the following is an example of impression evidence?

13 Combining impression evidences at a crime scene mainly helps investigators to do what?

14 Which equipment is commonly used to view fine ridge detail in impression analysis?

15 An alternate light source (ALS) is used in impression analysis to do what?

16 Which device is used to capture high-resolution digital images of impression evidence?

17 TraX software is primarily used for the analysis of which type of impression evidence?

18 A key advantage of using software like TraX in impression analysis is that it does what?

19 SUT-Lip-DB is a database created for storing and studying which type of evidence?

20 The study and analysis of lip prints is scientifically known as what?

21 An examiner needs to photograph a shallow shoe impression in dust on a tiled floor. Which lighting technique would best reveal the impression's ridge detail?

22 Why is a scale placed on the same plane as the impression during forensic photography of a footwear mark?

23 When photographing an impression, the camera's film/sensor plane should be positioned parallel to the impression surface primarily to:

24 A latent print photograph shows the ridge detail obscured by a busy multicoloured background. Which digital enhancement approach is most appropriate to isolate the print?

25 Fourier transform-based filtering is used in impression enhancement mainly to:

26 During digital enhancement of forensic images, why is it essential to preserve the original unaltered image file?

27 Which enhancement operation would best improve a faint bloody fingerprint captured with insufficient contrast between ridges and substrate?

28 In forensic facial reconstruction, tissue depth markers are placed on a skull to:

29 Which factor most influences the selection of tissue depth data tables used in facial reconstruction?

30 An advantage of computerized (3D digital) facial reconstruction over the manual clay method is that it:

31 At a scene, a shoe impression overlaps a tyre mark. Which sequence-determination principle helps establish which was deposited first?

32 When multiple impression types (fingerprint, footwear, and toolmark) are recovered from a single scene, integrated analysis primarily aims to:

33 A partial lip print is found superimposed over a faint fingerprint on a glass. The best approach for the examiner is to:

34 A forensic light source (FLS) with selectable wavelengths is used in impression analysis mainly to:

35 Which instrument is most appropriate for capturing the three-dimensional depth profile of a tool mark for detailed comparison?

36 A comparison microscope is particularly valuable in impression/toolmark analysis because it:

37 TraX software is primarily employed in forensic practice for:

38 How does software like TraX improve the efficiency of footwear impression investigations?

39 SUT-Lip-DB is best described as a resource that supports research and analysis by providing:

40 A researcher developing an automated lip print recognition algorithm would use a database like SUT-Lip-DB primarily to:

41 When photographing a three-dimensional shoe impression in soil, oblique lighting at a low angle is preferred over direct overhead flash. What is the primary rationale rooted in the physics of image formation?

42 A latent print examiner must photograph a dusted latent on a curved reflective surface. Which combination of techniques best mitigates specular reflection and perspective distortion?

43 In Fourier-based image enhancement of a fingerprint contaminated by a repetitive fabric-weave background, which operation most effectively removes the interference?

44 A forensic analyst enhances a faint bloody fingerprint. Increasing contrast via a linear stretch clips the highlights. Which approach preserves ridge detail across the full tonal range better?

45 When applying digital enhancement to evidentiary images, SWGIT/OSAC guidance requires that the process be defensible in court. Which practice is essential to maintain admissibility?

46 In the Manchester method of forensic facial reconstruction, tissue depth markers are placed at anatomical landmarks. What determines the depth values assigned to each marker?

47 A key limitation of skull-based facial reconstruction that affects identification reliability concerns which facial feature set?

48 Computerized 3D facial reconstruction increasingly uses CT-derived skull models. Compared to manual clay methods, the principal scientific advantage is:

49 At a scene, a partial shoeprint overlaps a tire-track impression in mud. Which analytical principle is most critical when interpreting the sequence of deposition?

50 When a fingerprint is found deposited within a bloodstain on a document, integrating both evidence types requires careful processing order. Why must enhancement chemistry be selected cautiously?

51 In evaluating combined impression evidence, the concept of 'corroborative value' increases when:

52 An examiner selects a comparison microscope for tool-mark impression analysis. What optical feature specifically enables simultaneous side-by-side striation comparison?

53 For capturing weak latent print luminescence, an Alternate Light Source (ALS) is paired with a barrier filter. What is the function of the barrier filter?

54 Electrostatic Detection Apparatus (ESDA) is used to visualize indented writing impressions. The physical principle it exploits is:

55 A scanning electron microscope with EDX (SEM-EDX) can add value to shoe/tire impression casts by:

56 TraX is a footwear and tire mark database and case-management system. In a large-scale investigation, its principal analytical contribution is:

57 An analyst wants to link a crime-scene mark to a manufacturer's shoe model using TraX. Which workflow step is most fundamental to enabling a reliable search?

58 The SUT-Lip-DB is a reference database developed to support automated lip-print (cheiloscopy) analysis. Which challenge does such a database primarily help address in research and casework?

59 In lip-print recognition based on databases like SUT-Lip-DB, the Suzuki–Tsuchihashi classification categorizes groove patterns. Why can feature extraction of these grooves be more difficult than fingerprint minutiae extraction?

60 An examiner stacks 30 short-exposure images of a faint luminescent print to improve signal. Assuming shot-noise-limited conditions, by what approximate factor does the signal-to-noise ratio improve relative to a single frame?