Identification Practice Questions

Q: Which traditional method is considered most reliable for personal identification in forensic science?

Galton method. ***Galton method*** - The **Galton method**, which refers to **fingerprint analysis**, is considered a highly reliable traditional method for personal identification due to the uniqueness and permanence of fingerprints. - No two individuals, even identical twins, have been found to have the exact same **fingerprint patterns**, making it a robust identifier. *Gustafson's method* - **Gustafson's method** is a technique used for **age estimation based on dental changes**, not for definitive personal identification. - While it provides an estimate of age, it cannot uniquely identify an individual. *DNA profiling* - **DNA profiling** is indeed the most reliable method for personal identification in modern forensic science, but it is not considered a "traditional" method. - The question specifically asks for a **traditional method**, distinguishing it from newer genetic techniques. *Anthropometry* - **Anthropometry** involves the measurement of the **human body and its parts**, often used for classification or to establish demographic profiles. - It is not reliable for unique personal identification as many individuals share similar physical measurements.

Q: Which of the following involves the examination of pores on the skin for personal identification?

Poroscopy. ***Poroscopy*** - **Poroscopy** is the method of personal identification through the examination of the anatomical characteristics of sweat pores. - This technique analyzes the **size, shape, and relative position** of pores found on friction ridge skin, which are unique to each individual. *Podography* - **Podography** involves the study of footprints and foot impressions, primarily for gait analysis or identification based on foot morphology. - It focuses on features like arches, weight distribution, and toe patterns, rather than skin pores. *Dactylography* - **Dactylography** is the scientific study of **fingerprints** and dermatoglyphics for personal identification. - While it deals with friction ridge skin, its primary focus is on the ridge patterns (**loops**, **whorls**, **arches**), not the pores within the ridges. *Cheiloscopy* - **Cheiloscopy** is the forensic study of patterns of **fissures and grooves on the lips** for personal identification. - It analyzes the unique arrangement of **lip furrows**, which are distinct from skin pores.

Q: Cheilography is the study of ?

Lip prints. ***Lip prints:*** - **Cheiloscopy**, or cheilography, is the forensic study of **lip prints** for individual identification. - Just like fingerprints, lip prints are unique to each individual and can be used as evidence. *Finger prints:* - The study of **fingerprints** is known as **dermatoglyphics** or dactyloscopy, not cheilography. - Fingerprints are commonly used in forensic science due to their unique ridge patterns. *Breath analysis:* - **Breath analysis** typically involves examining exhaled air for substances like alcohol or gases, used for diagnostic or forensic purposes. - This field is known as **breathomics** or clinical breath testing, not cheilography. *Foot prints:* - The examination of **footprints** is known as **podoscopy** or **pedobarography**, used in forensics and biomechanics. - Footprints provide information about an individual's gait and foot structure.

Q: Which test is used to detect gunshot residue on hands?

Dermal nitrate test. ***Dermal nitrate test*** - The **dermal nitrate test**, also known as the **paraffin test**, is used to detect the presence of nitrates and nitrites left on the hands after firing a gun. These compounds are components of gunpowder residue. - A positive result, indicated by a color change (blue specks), suggests the individual may have recently discharged a firearm or handled an object contaminated with gunshot residue. *Phenolphthalein test* - The **phenolphthalein test** is primarily used to detect the presence of **blood**. It reacts with the heme in blood to produce a pink color. - This test is not specific for gunpowder residue and would not indicate whether a person has recently fired a gun. *Benzidine test* - The **benzidine test** is another presumptive test used to detect the presence of **blood**. It is a highly sensitive test, turning blue in the presence of blood. - Due to its **carcinogenic properties**, its use has largely been replaced by other, safer tests for blood detection. It is not used for gunshot residue. *H2 activation test* - The term "**H2 activation test**" is not a standard or recognized forensic test for the detection of gunshot residue. - Forensic methods like Scanning Electron Microscopy with Energy Dispersive X-ray (SEM-EDX) are typically used for definitive gunshot residue analysis, focusing on characteristic particles containing lead, barium, and antimony.

Q: Disputed maternity can be solved by using the following tests, EXCEPT:

Precipitin test. ***Precipitin test*** - The **precipitin test** is used to determine the origin of a **blood sample**, specifically whether it is **human or animal blood**, by detecting species-specific proteins. It is not used for assessing maternity. - This test is primarily employed in **forensic serology** to differentiate between blood from different animal species, making it irrelevant for paternity or maternity disputes. *Blood grouping* - **Blood grouping** (e.g., ABO and Rh systems) can be used to **exclude paternity or maternity** by comparing the blood types of the child, mother, and alleged father. - If the child's blood type is incompatible with the alleged parents based on Mendelian inheritance, one or both can be excluded. *HLA typing* - **HLA typing** (Human Leukocyte Antigen) is a more powerful genetic marker system than ABO/Rh for determining paternity or maternity. - It involves analyzing highly polymorphic genes on chromosome 6 that encode cell surface proteins, providing a more definitive means of **inclusion or exclusion**. *DNA fingerprinting* - **DNA fingerprinting** (also known as **DNA profiling**) is the **most accurate and widely accepted method** for resolving paternity and maternity disputes. - It analyzes highly variable regions of DNA unique to each individual, providing a statistically strong basis for **inclusion or exclusion** by comparing genetic profiles.

Q: Which of the following is not a recognized pattern in fingerprints?

Concentric. ***Concentric*** - **Concentric** patterns are not a recognized primary classification of fingerprints. While some fingerprint patterns may appear somewhat concentric, it is not a standalone category like loops, whorls, or arches. - The three main patterns categorize the vast majority of human fingerprints based on their distinct ridge flow characteristics. *Loop* - A **loop** is a recognized and common fingerprint pattern where ridges enter from one side of the finger, form a curve, and then exit from the same side. - They account for approximately 60-70% of all fingerprints and are characterized by a single delta and a core. *Whorl* - A **whorl** is a distinct fingerprint pattern characterized by ridges that make a complete circuit, forming a spiral or circular shape. - Whorls are subdivided into plain whorls, central pocket loops, double loops, and accidental whorls, and they typically have two deltas. *Arch* - An **arch** is a recognized fingerprint pattern where ridges enter from one side of the finger, rise in the center to form a wave-like or arch-like structure, and then exit from the opposite side without making a recurve. - Arches are the least common type of fingerprint pattern, comprising about 5% of all prints, and they lack deltas and cores.

Q: If the 4th infralabial scale of a snake is larger than the others on either side, which snake is most likely being identified?

Krait. ***Krait*** - A distinguishing characteristic of **krait species** (e.g., common krait, *Bungarus caeruleus*) is the presence of an **enlarged 4th infralabial scale** relative to the adjacent scales. This is a key feature for field identification. - This specific scale arrangement is an important **diagnostic morphological feature** for differentiating krait species from other venomous snakes, particularly useful in forensic toxicology. - Kraits are part of India's **"Big Four"** venomous snakes responsible for most snakebite deaths. *Cobra* - While cobras possess varying scale patterns, the **enlarged 4th infralabial scale** is not a characteristic feature used for their identification. - Cobras (including the Indian cobra, *Naja naja*) are typically identified by their prominent **hood** and distinct markings, along with their relatively uniform infralabial scales. *Viper* - Vipers generally have **keeled scales** and a **triangular head** shape, but the size of their infralabial scales is not a primary diagnostic feature for species identification. - Russell's viper and saw-scaled viper, common in India, are identified by patterns like chain-like markings, their robust build, and distinctive head shapes. *Coral snake* - While coral snakes (family Elapidae, like kraits) are recognized by their distinct **banded color patterns**, they are **not native to the Indian subcontinent**. - Their infralabial scale morphology is not a prominent feature used for identification, and they rely primarily on warning coloration.

Q: Blackening and tattooing of skin and clothing can be best demonstrated by

Infrared photography. ***Infrared photography*** - This technique effectively visualizes **gunpowder residues** on skin and clothing because unburnt or partially burnt powder particles absorb infrared light, making them appear dark against lighter backgrounds. - It distinguishes **tattooing** (embedded powder) from **blackening** (surface soot) by its ability to penetrate shallow layers of tissue or fabric. *Luminol spray* - Luminol is primarily used to detect **latent bloodstains** through a chemiluminescence reaction. - It reacts with the iron in hemoglobin and would not specifically demonstrate gunpowder residues or tattooing. *Ultraviolet light* - UV light is useful for visualizing biological fluids, fibers, and some fingerprints, often by making them fluoresce. - It is generally not effective for the specific identification of **gunpowder tattooing** or **blackening**. *Magnifying lens* - While a magnifying lens can help in *visual inspection* of residues, it only magnifies what is visible to the naked eye. - It lacks the specialized capabilities to detect or differentiate residues with the same clarity and distinction as infrared photography can.

Q: The most reliable bones for the purpose of medullary index are the following, except:

Sternum. ***Sternum*** - The **medullary index** is used to classify **long bones** as human or non-human based on the ratio of the medullary cavity diameter to the bone's total diameter. - The sternum is a **flat bone** and does not possess a distinct medullary canal suitable for calculating the medullary index. *Humerus* - The humerus is a **long bone** frequently used in forensic anthropology for calculating the **medullary index**. - Its diaphysis contains a prominent **medullary cavity** that allows for accurate measurement. *Tibia* - The tibia is another **long bone** commonly used for determining the **medullary index**. - It has a significant **medullary canal** throughout its shaft, making it suitable for this measurement. *Radius* - The radius, like the humerus and tibia, is a **long bone** appropriate for calculating the **medullary index**. - Its shaft contains a well-defined **medullary cavity**, allowing for reliable measurements.

Q: Which method is considered the most reliable for fingerprint identification?

Galton method. ***Galton method*** - The **Galton method**, or **Galton's details**, refers to the unique patterns of **ridges and minutiae** (e.g., bifurcations, endings, dots) in fingerprints. - This method focuses on the **individual characteristics** and arrangements of these features, which are considered **highly individualizing** and form the basis of modern fingerprint analysis. *Gustafson method* - The **Gustafson method** is used in **forensic odontology** (dental forensics) for **age estimation** based on the examination of teeth. - It involves analyzing six morphological criteria of tooth changes, such as **attrition, secondary dentin deposits, and cementum apposition**, which are unrelated to fingerprint identification. *Anthropometry* - **Anthropometry** is the scientific study of the **measurements and proportions of the human body**. - It was historically used for identification (e.g., **Bertillonage system**) but was found to be less reliable than fingerprints due to the variability and commonality of body measurements. *Scars* - While **scars** can be unique bodily marks, they are **not considered a primary method for definitive identification** in the same way fingerprints are. - Scars can change over time, are not always present or uniformly documented, and lack the detailed, unchangeable patterns found in friction ridge skin.

Question 1

Which traditional method is considered most reliable for personal identification in forensic science?

Accepted Answer

Galton method

Answer

Gustafson's method

Answer

Anthropometry

Answer

DNA profiling

Question 2

Which of the following involves the examination of pores on the skin for personal identification?

Accepted Answer

Poroscopy

Answer

Podography

Answer

Dactylography

Answer

Cheiloscopy

Question 3

Cheilography is the study of ?

Accepted Answer

Lip prints

Answer

Finger prints

Answer

Breath analysis

Answer

Foot prints

Question 4

Which test is used to detect gunshot residue on hands?

Accepted Answer

Dermal nitrate test

Answer

Phenolphthalein test

Answer

Benzidine test

Answer

H2 activation test

Question 5

Disputed maternity can be solved by using the following tests, EXCEPT:

Accepted Answer

Precipitin test

Answer

Blood grouping

Answer

HLA typing

Answer

DNA fingerprinting

Question 6

Which of the following is not a recognized pattern in fingerprints?

Accepted Answer

Concentric

Answer

Loop

Answer

Whorl

Answer

Arch

Question 7

If the 4th infralabial scale of a snake is larger than the others on either side, which snake is most likely being identified?

Accepted Answer

Krait

Answer

Cobra

Answer

Viper

Answer

Coral snake

Question 8

Blackening and tattooing of skin and clothing can be best demonstrated by

Accepted Answer

Infrared photography

Answer

Luminol spray

Answer

Ultraviolet light

Answer

Magnifying lens

Question 9

The most reliable bones for the purpose of medullary index are the following, except:

Accepted Answer

Sternum

Answer

Tibia

Answer

Radius

Answer

Humerus

Question 10

Which method is considered the most reliable for fingerprint identification?

Accepted Answer

Galton method

Answer

Gustafson method

Answer

Anthropometry

Answer

Scars

Identification — MCQs

Identification — MCQs

On this page

Practice by Chapter

Want unlimited practice?