Forensic Science in Court Practice Questions

Q: Which is NOT a method of crime scene search?

Vehicle search method. ***Vehicle search method*** - A vehicle search method is not a recognized technique for **crime scene investigation** or for searching an area for evidence. - While vehicles may be searched *at* a crime scene, "vehicle search method" does not refer to a systematic general **crime scene search pattern**. *Grid method* - The **grid method** is a highly thorough search pattern that involves two passes over an area, typically in perpendicular directions. - It is effective for ensuring no evidence is missed, especially in **large outdoor scenes**. *Quadrant method* - The **quadrant method**, also known as the **zone method**, divides a crime scene into smaller, manageable sections or "quadrants." - This method is particularly useful for **large or complex scenes** where multiple searchers can be assigned to different zones. *Strip search method* - The **strip search method**, also known as the **lane search method**, involves searchers moving in parallel lines across an area. - It is effective for **large outdoor scenes** and for systematically covering a wide area.

Q: Locard's exchange principle is used for-

Detecting crime. ***Detecting crime*** - Locard's exchange principle states that "every contact leaves a trace," meaning that when a **criminal comes into contact with a person or location**, he leaves behind evidence and also takes something away. - This principle is fundamental in **forensic science** for identifying perpetrators and linking them to crime scenes through trace evidence. *Finding out time since death* - Determining the **post-mortem interval** typically involves analyzing factors such as **rigor mortis, livor mortis, algor mortis**, and decomposition stages. - Locard's principle focuses on exchange of evidence during a crime, not the process of death or subsequent decomposition. *Estimating the age* - Age estimation in forensic contexts often relies on methods like **skeletal development, dental eruption patterns**, or analysis of bone ossification. - Locard's principle is about the transfer of materials between entities, not a direct method for age assessment. *Detecting poisoning* - The detection of poisoning involves **toxicological analysis** of biological samples (blood, urine, tissues) to identify the presence and concentration of toxins. - While trace evidence could lead to a suspect who administered poison, the principle itself doesn't directly detect the poison in the body.

Q: In the field of forensic science, what is Locard most famous for?

Locard's Exchange Principle. ***Locard's Exchange Principle*** - **Edmond Locard** formulated the principle that states: "Every contact leaves a trace." - This principle is fundamental to **forensic science**, asserting that a criminal leaves evidence behind at a crime scene while also taking something away. *Study of fingerprints* - While significant in forensics, the systematic **study and classification of fingerprints** are primarily associated with individuals like **Francis Galton** and **Edward Henry**, not Locard. - Locard utilized fingerprints in his forensic investigations but is not credited with their initial comprehensive study. *Estimation of stature using formulas* - The development of formulas for **stature estimation** from skeletal remains is more closely linked to forensic anthropologists, such as **Roland Martin** and **Mildred Trotter**. - Locard's focus was on the transfer of trace evidence rather than osteological measurements for individual identification. *Personal identification through body measurements* - This method, known as **anthropometry** or the Bertillon system, was developed by **Alphonse Bertillon**. - While Bertillon predated Locard and his system was widely used, Locard's contribution revolutionized forensic investigation by emphasizing trace evidence over static body measurements.

Q: Which of the following techniques is associated with the term 'MERMER' in the context of memory recognition?

Brain fingerprinting. ***Brain fingerprinting*** - **MERMER** (**Memory and Encoding Related Multifaceted Electroencephalographic Response**) is a key component of **brain fingerprinting**, which uses **EEG** to detect brain responses to specific information. - This technique aims to determine if an individual has specific knowledge or memories related to an event, by measuring electrical activity in the brain. *Narcoanalysis* - Involves administering psychoactive drugs (e.g., **sodium pentothal**) to induce a semi-conscious state, under the premise that it might facilitate recall of hidden memories. - It does not involve the measurement of **EEG responses** or the specific MERMER phenomenon. *DNA fingerprinting* - A technique used to identify individuals based on their unique **DNA profiles**, often used in forensics and paternity testing. - It is a **molecular biology** technique and has no association with brainwave patterns or memory recognition. *Polygraph test* - Measures physiological responses such as **heart rate**, **blood pressure**, **respiration rate**, and **skin conductivity** to assess deception. - While it attempts to infer truthfulness, it does not directly measure memory recall through EEG patterns like MERMER.

Q: Hostile witness is one who:

Refuses to cooperate with the party that called them. ***Refuses to cooperate with the party that called them*** - A **hostile witness** is one who, though called by a party, demonstrates antagonism or unwillingness to testify favorably for that party. - Under Section 154 of the Indian Evidence Act, when a witness appears **adverse to the party who called them**, the court may declare them hostile, allowing cross-examination by their own party. - This can include refusing to answer questions, feigning a lapse of memory, or showing open animosity, effectively **impeding the party's attempt to elicit favorable testimony**. *Threatens the judge or prosecutor* - Threatening court officials is considered **contempt of court** and is a separate offense, not the definition of a hostile witness. - While such behavior indicates non-cooperation, the legal term "hostile witness" specifically refers to the witness's testimony and demeanor regarding the party who summoned them. *Provides misleading testimony* - A witness who provides **misleading testimony** may be evasive or untruthful, but this does not automatically classify them as hostile in the legal sense. - The designation of a **hostile witness** focuses on the witness's attitude towards the party who called them, making their testimony adverse to that party's case. *Willfully gives false evidence* - Willfully giving false evidence is **perjury** under Section 191 of the Indian Penal Code, a serious crime, and not the definition of a hostile witness. - While a hostile witness may be untruthful, the term primarily refers to their **unwillingness to cooperate with the party that called them** to testify, necessitating permission for cross-examination by their own party.

Question 1

Which is NOT a method of crime scene search?

Accepted Answer

Vehicle search method

Answer

Grid method

Answer

Quadrant method

Answer

Strip search method

Question 2

Locard's exchange principle is used for-

Accepted Answer

Detecting crime

Answer

Finding out time since death

Answer

Estimating the age

Answer

Detecting poisoning

Question 3

In the field of forensic science, what is Locard most famous for?

Accepted Answer

Locard's Exchange Principle

Answer

Study of fingerprints

Answer

Estimation of stature using formulas

Answer

Personal identification through body measurements

Question 4

In forensic medical examination, what is the primary significance of documenting injuries systematically?

Accepted Answer

Systematic documentation ensures legal admissibility and prevents evidence challenges in court

Answer

Medical evidence collection must follow proper chain of custody procedures

Answer

Toxicological analysis requires proper sample preservation and laboratory protocols

Answer

Autopsy findings provide objective evidence for cause and manner of death

Question 5

Which of the following techniques is associated with the term 'MERMER' in the context of memory recognition?

Accepted Answer

Brain fingerprinting

Answer

Narcoanalysis

Answer

DNA fingerprinting

Answer

Polygraph test

Question 6

Hostile witness is one who:

Accepted Answer

Refuses to cooperate with the party that called them

Answer

Willfully gives false evidence

Answer

Threatens the judge or prosecutor

Answer

Provides misleading testimony

Forensic Science in Court — MCQs

Forensic Science in Court — MCQs

On this page

Practice by Chapter

Want unlimited practice?