Chapter 2 History of forensic science

1. Who is known as the founder of forensic toxicology?

A. Alphonse Bertillon
B. Henry Goddard
C. Mathieu Orfila
D. Edmond Locard
Correct Answer: C) Mathieu Orfila
- Explanation: Mathieu Orfila is regarded as the founder of forensic toxicology, primarily for his pioneering work on detecting poisons and their effects on the human body, most notably arsenic.

2. What principle did Dr Edmond Locard formulate?

A. The principle of fingerprint analysis
B. The Locard Exchange Principle
C. The principle of anthropometry
D. The principle of digital forensics
Correct Answer: B) The Locard Exchange Principle
- Explanation: Dr Edmond Locard formulated the Locard Exchange Principle, which states that every contact leaves a trace. This principle is fundamental to modern forensic science.

3. In what year was the ABO blood group system discovered?

A. 1850
B. 1900
C. 1937
D. 1945
Correct Answer: B) 1900
- Explanation: The ABO blood group system was discovered in 1900 by Karl Landsteiner, significantly advancing the application of blood typing in forensic science.

4. Which of the following is considered the first recorded case of forensic science in action?

A. The use of fingerprints for identification
B. The detection of arsenic in a body
C. The examination of blood types in a crime scene
D. The investigation of a murder with a sickle in Medieval China
Correct Answer: D) The investigation of a murder with a sickle in Medieval China
- Explanation: The first recorded case of forensic science involved the investigation of a murder in Medieval China, where flies attracted to a sickle helped solve the crime.

5. What was Alphonse Bertillon known for?

A. Developing the science of toxicology
B. Introducing the system of anthropometry for criminal identification
C. Formulating the principle of every contact leaves a trace
D. Discovering the ABO blood group system
Correct Answer: B) Introducing the system of anthropometry for criminal identification
- Explanation: Alphonse Bertillon introduced the system of anthropometry, a method based on physical measurements to identify criminals, which was a significant advancement in forensic science albeit outdated now.

6. The forensic detection of which poison is credited to Mathieu Orfila?

A. Cyanide
B. Mercury
C. Arsenic
D. Lead
Correct Answer: C) Arsenic
- Explanation: Mathieu Orfila's work on the forensic detection of arsenic, due to its prevalence as a poison in his time, marked him as a pioneer in toxicology.

7. In which century did forensic science begin to see significant advancements?

A. 16th Century
B. 17th Century
C. 18th Century
D. 19th Century
Correct Answer: C) 18th Century
- Explanation: The 18th century began significant advancements in forensic science, with developments in techniques such as toxicology and bullet comparison.

8. What is the significance of 1784 in forensic science history?

A. The first documented use of physical evidence to secure a conviction
B. The first use of anthropometry
C. The discovery of the ABO blood group system
D. The formulation of the Locard Exchange Principle
Correct Answer: A) The first documented use of physical evidence to secure a conviction
- Explanation: In 1784, John Toms was convicted of murder in the UK, marking the first documented case where physical evidence (a piece of newspaper) was used to secure a conviction.

9. What does the Locard Exchange Principle state?

A. Every crime scene contains fingerprints.
B. Every contact leaves a trace.
C. Blood type can solve crimes.
D. DNA is unique to every individual.
Correct Answer: B) Every contact leaves a trace.
- Explanation: The Locard Exchange Principle, formulated by Dr Edmond Locard, posits that every interaction between two objects or individuals results in a transfer of material, which forms the cornerstone of modern forensic science.

10. The first case of bullet comparison used in forensic science was documented in what year?

A. 1784
B. 1813
C. 1835
D. 1900
Correct Answer: C) 1835
- Explanation: The first documented case of bullet comparison used in an investigation occurred in 1835 by Henry Goddard, marking the inception of forensic ballistics.

11. What significant advancement in forensic science was made by Karl Landsteiner in 1900?

A. Discovery of the ABO blood group system
B. Invention of luminol
C. Discovery of DNA
D. Development of the first crime lab
Correct Answer: A) Discovery of the ABO blood group system
- Explanation: Karl Landsteiner's discovery of the ABO blood group system in 1900 revolutionised forensic science by enabling blood type to be used as a method of distinguishing individuals.

12. Which of the following best describes the role of the Forensic Science Regulator?

A. To solve criminal cases
B. To enforce the law
C. To ensure forensic science services meet quality standards
D. To train forensic scientists
Correct Answer: C) To ensure forensic science services meet quality standards
- Explanation: The Forensic Science Regulator ensures that forensic science services in the criminal justice system are carried out with objectivity, impartiality, and adherence to scientific standards.

13. Who was the first person convicted using forensic material matching in 1784?

A. Alphonse Bertillon
B. Mathieu Orfila
C. Edmond Locard
D. John Toms
Correct Answer: D) John Toms
- Explanation: John Toms was convicted of murder in 1784, marking a milestone in forensic science history where physical evidence was used to secure a conviction.

14. What is forensic entomology based on?

A. The study of fingerprints
B. The analysis of blood types
C. The study of insects at crime scenes
D. The comparison of DNA samples
Correct Answer: C) The study of insects at crime scenes
- Explanation: Forensic entomology involves the study of insects at crime scenes to gather information about a crime, such as the time of death.

15. Which role is responsible for determining the cause of death?

A. Toxicologist
B. Pathologist
C. Entomologist
D. Psychiatrist
Correct Answer: B) Pathologist
- Explanation: Pathologists examine bodies post‐mortem to determine the cause of death, forensic pathologists often playing a crucial role in criminal investigations.

16. Which of the following is a method used in forensic anthropology?

A. DNA sequencing
B. Blood type analysis
C. Examination of skeletal remains
D. Fingerprint analysis
Correct Answer: C) Examination of skeletal remains
- Explanation: Forensic anthropology primarily involves the examination of skeletal remains to determine identity, cause of death, and other information pertinent to legal investigations.

17. In forensic science, what is the significance of DNA profiling?

A. It identifies the blood type of an individual.
B. It determines the cause of death.
C. It provides a unique genetic fingerprint for identification.
D. It establishes the time of death.
Correct Answer: C) It provides a unique genetic fingerprint for identification.
- Explanation: DNA profiling is a forensic technique for identifying individuals by characteristics of their DNA, offering a high level of accuracy in criminal investigations.

18. Which of the following technologies is NOT commonly used in forensic investigations?

A. Quantum computing
B. Luminol testing
C. Gas chromatography
D. DNA fingerprinting
Correct Answer: A) Quantum computing
- Explanation: While quantum computing is a powerful technology, it is not currently a standard tool in forensic investigations. Traditional methods like gas chromatography, luminol testing and DNA fingerprinting are more commonly used.

19. Forensic psychology is primarily concerned with the study of?

A. Insect life cycles
B. The human mind and behaviour in the context of the law
C. Poisonous substances
D. Blood spatter patterns
Correct Answer: B) The human mind and behaviour in the context of the law
- Explanation: Forensic psychology focuses on the intersection of psychology and the legal system, including the assessment of individuals' mental states for legal cases.

20. The use of insects to estimate the time of death is known as?

A. Toxicology
B. Anthropology
C. Entomology
D. Chronology
Correct Answer: C) Entomology
- Explanation: Forensic entomology involves the study of insects and their developmental stages on decomposing remains to estimate time of death, aiding in crime scene investigations.

21. Which of the following is a pioneering figure in the development of DNA fingerprinting?

A. Alec Jeffreys
B. Edmond Locard
C. Alphonse Bertillon
D. Mathieu Orfila
Correct Answer: A) Alec Jeffreys
- Explanation: Alec Jeffreys developed the technique of DNA fingerprinting in 1984, revolutionising forensic science by enabling the precise identification of individuals through their DNA profiles.

22. In forensic science, ballistics is the study of?

A. Blood spatter
B. Fingerprints
C. Firearms and bullets
D. Poisonous substances
Correct Answer: C) Firearms and bullets
- Explanation: Ballistics is the branch of forensic science that deals with the study of firearms, bullets, and the dynamics of projectiles, playing a crucial role in investigations involving firearms

23. What is the primary purpose of forensic odontology in criminal investigations?

A. To identify victims through dental records
B. To examine soil samples
C. To analyse blood samples
D. To study the effects of poisons
Correct Answer: A) To identify victims through dental records
- Explanation: Forensic odontology involves the study and evaluation of dental evidence, such as bite marks and dental records, to identify victims of crime or disasters and, in some cases, to link suspects to bite marks on victims.

24. Which technique is used in forensic science to analyse the composition of fibres, paints and other materials at a crime scene?

A. DNA Sequencing
B. Spectroscopy
C. Fingerprint Analysis
D. Blood Typing
Correct Answer: B) Spectroscopy
- Explanation: Spectroscopy is a forensic technique that involves the analysis of the spectrum of light emitted or absorbed by materials. It is used to identify and compare the composition of fibres, paints and other trace evidence at crime scenes, providing crucial information for investigations.

25. Who identified Deoxyribonucleic acid (DNA)?

A. Francis Crick and James Watson
B. Holmes and Watson
C. Rosalind Franklin and Maurice Wilkins
D. Linus Pauling and Robert Corey
Correct Answer: A) Francis Crick and James Watson
- Explanation: Francis Crick and James Watson are credited with identifying the double‐helix structure of DNA in 1953, a key milestone in molecular biology. They built on the work of many scientists, including Rosalind Franklin, Maurice Wilkins and Linus Pauling.

Chapter 2 History of forensic science – MCQs