Admissibility of Evidence — MCQs
What is the forensic method of identification that utilizes lip prints?
Disputed maternity can be solved by using the following tests, EXCEPT:
Doctor or nurse disclosing the identity of a rape victim is punishable under the following section of IPC?
Res ipsa loquitur is?
Under which section of the CrPC can a rape accused be medically examined without their consent?
In civil negligence, onus of proof lies on -
What is the most reliable method to determine the time of death within the first 24 hours after death?
The most specific test to detect blood stains is:
Which test is used for detecting gunshot residue?
Dying declaration comes under:
Admissibility of Evidence Indian Medical PG Practice Questions and MCQs
Question 1: What is the forensic method of identification that utilizes lip prints?
- A. Trichology
- B. Dactylography
- C. Poroscopy
- D. Cheiloscopy (Correct Answer)
Explanation: ***Cheiloscopy*** - **Cheiloscopy** is the scientific study of lip prints for human identification, based on the unique patterns of furrows on the human lips. - These patterns are considered individual and permanent, making them useful in forensic investigations. *Dactylography* - **Dactylography** is the study of fingerprints, which involves analyzing the unique patterns of ridges and furrows on the fingertips for identification. - It is one of the most widely used and reliable methods for personal identification in forensic science, but does not involve lip prints, *Poroscopy* - **Poroscopy** is a forensic technique that involves the examination of the pores on the ridges of fingerprints. - It is used to individualize fingerprints when there is insufficient ridge detail, but it focuses on pores, not lip prints. *Trichology* - **Trichology** is the scientific study of hair and scalp. - In forensics, it involves analyzing hair samples to determine characteristics such as origin, race, and presence of toxins, but not lip prints.
Question 2: Disputed maternity can be solved by using the following tests, EXCEPT:
- A. Blood grouping
- B. HLA typing
- C. DNA fingerprinting
- D. Precipitin test (Correct Answer)
Explanation: ***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.
Question 3: Doctor or nurse disclosing the identity of a rape victim is punishable under the following section of IPC?
- A. Section 224A
- B. Section 226A
- C. Section 222A
- D. Section 228A (Correct Answer)
Explanation: ***Section 228A IPC*** - This section of the Indian Penal Code specifically deals with the **disclosure of the identity of a victim of rape and certain sexual offenses** (Sections 376, 376A, 376AB, 376B, 376C, 376D, 376DA, 376DB, 376E). - Making public the name or any matter that can reveal the identity of a rape victim by **any person, including doctors and nurses**, is a punishable offense. - **Punishment**: Imprisonment up to **2 years** and fine. - **Exception**: Disclosure is permitted only to authorized persons like police officers for investigation purposes. - **Important**: This is now covered under **Section 72 of Bharatiya Nyaya Sanhita (BNS) 2023**, which replaced the IPC. *Section 224A* - This is **not a valid or recognized provision** within the Indian Penal Code. - It does not relate to offenses concerning privacy or the identity of sexual assault victims. *Section 226A* - This is **not a valid or recognized provision** within the Indian Penal Code. - It does not pertain to the confidentiality of victims of sexual offenses. *Section 222A* - This is **not a valid or recognized provision** within the Indian Penal Code. - There is no such specific section addressing disclosure of victim identity in the IPC.
Question 4: Res ipsa loquitur is?
- A. Oral evidence
- B. Fact speaks for itself (Correct Answer)
- C. Medical maloccurrence
- D. Common knowledge
Explanation: ***Fact speaks for itself*** - **Res ipsa loquitur** is a legal doctrine meaning "the thing speaks for itself," implying that the very nature of an accident or injury suggests negligence. - This doctrine is applied when an injury typically would not occur without **negligence**, and the defendant had exclusive control over the instrumentality causing the injury. *Oral evidence* - **Oral evidence** refers to testimony given verbally in court by a witness. - While evidence is presented in court, "res ipsa loquitur" is a principle of inference, not a specific type of evidence. *Medical maloccurrence* - A **medical maloccurrence** is an undesirable or unexpected outcome in medical treatment that may or may not be due to negligence. - It describes an event, whereas "res ipsa loquitur" is a legal principle used to infer negligence. *Common knowledge* - **Common knowledge** refers to facts or information that are generally known by the public. - While the application of "res ipsa loquitur" might sometimes rely on common sense, it is a specific legal doctrine, not just a general acknowledgment of common facts.
Question 5: Under which section of the CrPC can a rape accused be medically examined without their consent?
- A. Section 54 - Examination of arrested person by medical officer
- B. Section 84 - Procedure when investigation cannot be completed in 24 hours
- C. Section 53 - Medical examination of accused without consent (Correct Answer)
- D. Section 82 - Proclamation for absconding persons
Explanation: ***Section 53 - Medical examination of accused without consent*** - **Section 53 of the CrPC** permits the medical examination of an arrested person, including a **rape accused**, without their consent when there are reasonable grounds to believe that such examination will afford evidence relevant to the commission of the offense. - This provision is crucial for collecting **forensic evidence** (e.g., DNA samples, injuries, scratches, bite marks) that may prove or disprove the accused's involvement in the crime. - The examination can be conducted by a **registered medical practitioner** at the request of a police officer not below the rank of Sub-Inspector. - Section 53A specifically deals with medical examination of rape accused. *Section 54 - Examination of arrested person by medical officer* - **Section 54 of the CrPC** pertains to the examination of an arrested person by a medical officer **at the request of the arrested person** themselves. - This is used to document **injuries or evidence of torture** while in custody, serving as a safeguard against custodial violence. - It is a **protective measure for the accused**, not for evidence collection against them. *Section 82 - Proclamation for absconding persons* - **Section 82 of the CrPC** deals with issuing a **proclamation requiring absconding persons** to appear before the court. - It is used when a person has absconded or is concealing themselves to avoid execution of a warrant. - It has no connection with medical examination procedures. *Section 84 - Procedure when investigation cannot be completed in 24 hours* - **Section 84 of the CrPC** deals with the procedure when police investigation **cannot be completed within 24 hours** of arrest. - It relates to the **detention of the accused** beyond the initial 24-hour period with magistrate's authorization. - It does not address medical examination of the accused.
Question 6: In civil negligence, onus of proof lies on -
- A. Police not below the level of sub inspector
- B. Judicial first degree magistrate
- C. Patients (Correct Answer)
- D. Doctor
Explanation: ***Patients*** - In civil negligence cases, the **onus of proof** (burden of proof) generally lies with the **plaintiff**, who is the patient (or their legal representatives) alleging negligence. - The patient must demonstrate that the doctor owed a **duty of care**, breached that duty, and this breach directly caused their **injury** or harm. *Police not below the level of sub inspector* - The police are primarily involved in **criminal investigations** and maintaining law and order, not typically in initiating civil negligence claims or bearing the burden of proof in such cases. - Their role in medical matters would usually be restricted to investigating potential **criminal acts**, such as severe assault or malpractice leading to death, rather than civil negligence. *Judicial first degree magistrate* - A magistrate is a **judicial officer** who presides over minor legal proceedings and preliminary matters, primarily in criminal cases. - Magistrates are members of the judiciary and are responsible for **adjudicating** cases, not for initiating or proving negligence claims themselves. *Doctor* - While the doctor is the **defendant** in a medical negligence case, they do not bear the initial **onus of proof** to show they were not negligent. - The doctor may have to present evidence to **rebut** the patient's claims, but the primary burden remains on the patient to establish negligence.
Question 7: What is the most reliable method to determine the time of death within the first 24 hours after death?
- A. Livor mortis is fixed and cannot be displaced after 8-12 hours
- B. Rigor mortis appears first in smaller muscles and progresses to larger muscles
- C. Putrefaction begins immediately after death in all environmental conditions
- D. Algor mortis using rectal temperature with standard nomograms (Correct Answer)
Explanation: ***Algor mortis using rectal temperature with standard nomograms*** - **Algor mortis** (body cooling) measured via **rectal temperature** using standardized nomograms (such as **Henssge's nomogram**) is considered the **most reliable method** for estimating time of death within the first 24 hours. - While environmental factors affect cooling rate, the use of **mathematical models and nomograms** that account for body weight, ambient temperature, and clothing make this method more **objective and reproducible** than other postmortem changes. - Provides **quantitative data** that can be standardized, unlike the more subjective assessments of rigor or livor mortis. *Rigor mortis appears first in smaller muscles and progresses to larger muscles* - **Rigor mortis** follows **Nysten's rule** (progression from smaller to larger muscles), typically appearing within 2-6 hours, peaking at 12-24 hours. - However, the **onset time is highly variable** depending on factors like ante-mortem physical activity, environmental temperature, and cause of death. - The subjective nature of assessment and **significant individual variation** make it less reliable than temperature-based methods for precise time estimation. *Livor mortis is fixed and cannot be displaced after 8-12 hours* - **Livor mortis** (postmortem lividity) becomes fixed and non-blanchable after approximately 8-12 hours. - While useful, the **wide time range** for fixation and the fact that it provides only a few discrete time points (appearance, confluence, fixation) make it less precise than continuous temperature measurements. *Putrefaction begins immediately after death in all environmental conditions* - This statement is **incorrect**. **Putrefaction** (bacterial decomposition) typically begins hours to days after death, heavily dependent on **environmental temperature** and humidity. - Putrefaction is useful for estimating time of death **beyond 24-48 hours**, not within the first 24 hours as asked in this question.
Question 8: The most specific test to detect blood stains is:
- A. Benzidine test
- B. Teichmann's test
- C. Spectroscopic test (Correct Answer)
- D. Orthotoluidine test
Explanation: ***Spectroscopic test*** - The **spectroscopic test** is considered the most specific for detecting blood stains because it identifies the characteristic absorption bands of **hemoglobin** and its derivatives. - This test is highly definitive due to the unique **light absorption properties** of blood components, making it less prone to false positives compared to chemical tests. *Benzidine test* - The **benzidine test** is a sensitive preliminary test for blood but is **not specific**, as it reacts with other oxidizing agents (e.g., rust, certain plant peroxidases). - It works by detecting the **peroxidase-like activity of hemoglobin**, leading to color changes but lacks confirmation of blood origin. *Teichmann's test* - **Teichmann's test** (hemin crystal test) is a moderately specific confirmatory test that produces **rhombic crystals of hemin** when heated with glacial acetic acid and a halide salt. - While more specific than presumptive tests, it can sometimes produce **false-negative results** with old or degraded bloodstains and may be less sensitive than spectroscopy. *Orthotoluidine test* - Similar to the benzidine test, the **orthotoluidine test** is another **presumptive test** that detects the peroxidase-like activity of hemoglobin, resulting in a blue-green color change. - It is **highly sensitive but not specific**, meaning it can also give positive reactions with other substances that have similar peroxidase activity, leading to potential false positives.
Question 9: Which test is used for detecting gunshot residue?
- A. Lie test for Firearm injury
- B. Neutron activation analysis for firearm use (Correct Answer)
- C. Toluidine blue test
- D. Benzidine test for blood stain
Explanation: ***Neutron activation analysis for firearm use*** - **Neutron activation analysis (NAA)** is a highly sensitive and reliable method for detecting specific elements characteristic of **gunshot residue (GSR)**, such as **barium**, **antimony**, and **lead**. - This technique works by irradiating samples with neutrons, causing them to emit gamma rays that are unique to each element, allowing for precise identification and quantification of GSR particles. *Lie test for Firearm injury* - A "lie test" typically refers to a **polygraph test**, which assesses physiological responses to detect deception, not physical evidence like gunshot residue. - Polygraph tests are not used for identifying **firearm injury** or the presence of actual physical traces. *Toluidine blue test* - The **Toluidine blue test** is primarily used in dentistry to detect and delineate **dysplastic or malignant lesions** in the oral mucosa. - It has no application in the forensic analysis of gunshot residue or firearm use. *Benzidine test for blood stain* - The **Benzidine test** was historically used as a preliminary test for the presence of **blood stains**, as it reacts with the heme component of hemoglobin. - It is not used for detecting **gunshot residue** and has largely been replaced by safer and more specific tests due to its carcinogenic properties.
Question 10: Dying declaration comes under:
- A. 291 CrPC
- B. Section 60 IEA
- C. Section 33 IEA
- D. Section 32 IEA (Correct Answer)
Explanation: ***Correct: Section 32 IEA*** - **Dying declaration** is admissible under **Section 32 of the Indian Evidence Act (IEA)** as an exception to the rule against hearsay, because the declarant is unavailable. - This section deals with statements made by a person who has died, especially concerning the cause of their death or the circumstances leading to it. - Section 32(1) specifically covers statements made by a person as to the cause of their death or circumstances of the transaction which resulted in their death. *Incorrect: 291 CrPC* - **Section 291 of the Code of Criminal Procedure (CrPC)** deals with evidence of formal character, specifically the method of proving previous convictions or acquittals. - It does not pertain to the admissibility of dying declarations. *Incorrect: Section 60 IEA* - **Section 60 of the Indian Evidence Act** states that oral evidence must be direct, meaning it must relate to what the witness personally saw, heard, or perceived. - Dying declarations are an exception to this **hearsay rule** but are not directly governed by Section 60. *Incorrect: Section 33 IEA* - **Section 33 of the Indian Evidence Act** deals with the relevancy of evidence given in previous judicial proceedings. - It allows for the use of testimony from a prior case if the witness is unavailable, but it does not specifically cover dying declarations.
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