Miscellaneous Questions of Forensic Science Set-4
Q1. During autopsy, greenish discoloration first appears over the right iliac fossa because:
a) The caecum is the first organ to decompose.
b) The sigmoid colon contains maximum intestinal bacteria.
c) The caecum lies close to the abdominal wall and contains abundant bacteria.
d) Liver enzymes initiate putrefaction in this region.
Answer: c) The caecum lies close to the abdominal wall and contains abundant bacteria.
Explanation:
Putrefaction begins in the right iliac fossa because the caecum contains abundant intestinal flora and is
located superficially. Hydrogen sulfide produced by bacteria reacts with hemoglobin to form
sulfhemoglobin, producing the characteristic green discoloration.
Q2. Which of the following post-mortem changes is considered a physicochemical change rather
than decomposition?
a) Adipocere formation
b) Rigor mortis
c) Putrefaction
d) Skeletonization
Answer: b) Rigor mortis
Explanation:
Rigor mortis results from depletion of ATP leading to irreversible actin-myosin binding. It is a
physicochemical process occurring before decomposition.
Q3. Casper's dictum (1:2:8) is used for estimating:
a) Time since death under different environmental conditions
b) Time required for rigor mortis
c) Blood coagulation after death
d) Lividity fixation
Answer: a) Time since death under different environmental conditions
Explanation:
Casper's dictum states that decomposition progresses approximately in the ratio:
1 week in air = 2 weeks in water = 8 weeks in soil.
a) It is absent in areas under pressure.
b) It becomes fixed after approximately 8–12 hours.
c) It disappears completely after putrefaction begins.
d) It can help determine body position after death.
Answer: c) It disappears completely after putrefaction begins.
Explanation:
Hypostasis may become obscured by putrefaction but does not disappear completely.
Q5. During post-mortem examination, "pink teeth" are most commonly associated with:
a) Cyanide poisoning
b) Drowning
c) Carbon monoxide poisoning
d) Arsenic poisoning
Answer: b) Drowning
Explanation:
Pink discoloration of dentin occurs due to hemoglobin diffusion into dentinal tubules and is frequently
associated with drowning, although it may occur in other conditions.
Q6. Which injury is produced by impact with a blunt object having a narrow striking surface?
a) Incised wound
b) Split laceration
c) Chop wound
d) Puncture wound
Answer: b) Split laceration
Explanation:
A split laceration occurs when skin is crushed between bone and a blunt object, producing wounds
resembling incised wounds but showing tissue bridges.
Q7. Which of the following is NOT a characteristic feature of an incised wound?
a) Clean-cut margins
b) Tissue bridges
c) Profuse bleeding
d) Length greater than depth
Answer: b) Tissue bridges
Explanation:
Tissue bridges are characteristic of lacerations, not incised wounds.
Q8. Hesitation cuts are most commonly associated with:
a) Homicide
b) Accidental injury
c) Suicide
d) Industrial trauma
Answer: c) Suicide
Explanation:
Hesitation cuts are superficial trial cuts commonly seen before a fatal suicidal incised wound.
Q9. Defence wounds are commonly located on:
a) Abdomen
b) Neck
c) Palms and forearms
d) Thigh
Answer: c) Palms and forearms
Explanation:
Victims instinctively protect themselves using their hands and forearms, producing characteristic
defence injuries.
Q10. Which fracture is classically produced by a fall on an outstretched hand?
a) Depressed skull fracture
b) Colles fracture
c) Ring fracture
d) Jefferson fracture
Answer: b) Colles fracture
Explanation:
Colles fracture involves the distal radius following a fall on an extended hand.
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