Orris

FMT QP 10 marks Medical negligence Autoerotic sexual asphyxia 5 marks Putrefaction Cocaine Gustafson's method of age estimation SIDS (sudden infant death syndrome) Civil responsibilities of a mentally ill person MTP and recent amendments Dactylography Arsenic poisoning 3marks Run amoke Phossy jaw Coup and contrecoup injury Hesitation cuts Summons Dying declaration Fractures of hyoid bone with diagrams Types of hymen Joule's burn Bansdola answers according to rajesh bhardale fmt textbook

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Here are complete answers for your FMT Question Paper, written as per the Rajesh Bhardale FMT textbook standard:

FMT QUESTION PAPER - COMPLETE ANSWERS

10 MARKS

1. MEDICAL NEGLIGENCE (MALPRACTICE)

Definition

Medical negligence is the failure of a medical practitioner to exercise that degree of care and skill which a reasonably competent medical man of that particular branch of medicine would have exercised in similar circumstances.

Legal Basis - Bolam's Test (1957)

A doctor is not negligent if he acts in accordance with a practice accepted as proper by a responsible body of medical men skilled in that particular art, even if another body of opinion takes a contrary view.

Essential Elements (4 D's)

To prove medical negligence, the plaintiff must establish:
  1. Duty - The doctor owed a duty of care to the patient (doctor-patient relationship must exist)
  2. Dereliction - Breach/dereliction of that duty (the doctor failed to perform that duty)
  3. Direct causation - The breach directly caused the damage (proximate cause)
  4. Damage - Actual damage must have resulted to the patient

Types of Medical Negligence

A. Criminal Negligence
  • Gross and reckless negligence that endangers human life
  • Punishable under Section 304A IPC (now Section 106 BNS 2023): "Causing death by negligence" - imprisonment up to 2 years OR fine OR both
  • Example: Administering wrong anesthesia without checking patient history leading to death
B. Civil Negligence
  • Less serious; patient seeks compensation/damages
  • No criminal intent required
  • Filed under Consumer Protection Act 1986 / 2019

Landmark Cases

  1. Jacob Mathew vs State of Punjab (2005) - Supreme Court held that criminal negligence requires "gross" negligence; simple inadvertent error is not criminal
  2. Dr. Laxman Balkrishna Joshi vs Dr. Trimbak Bapu Godbole (1969) - Defined duties of a doctor
  3. Spring Meadows Hospital vs Harjot Ahluwalia (1998) - Hospital vicariously liable for negligent acts of employees

Res Ipsa Loquitur ("The thing speaks for itself")

Applied when negligence is so obvious it does not require expert testimony:
  • Swab/instrument left in the body after surgery
  • Wrong limb amputated
  • Operation on wrong patient

Vicarious Liability

A hospital or senior doctor is liable for the negligent acts of junior doctors, nurses, and staff working under their supervision.

Defenses Against Medical Negligence

  1. Error of judgment (not the same as negligence)
  2. Accepted by a responsible body of medical opinion (Bolam test)
  3. Patient gave valid informed consent to the risk
  4. Emergency situation with no time for full assessment
  5. Novus actus interveniens (intervening act of a third party breaks chain of causation)
  6. Contributory negligence by the patient

Precautions to Avoid Medical Negligence

  1. Maintain proper case records and notes
  2. Obtain written informed consent
  3. Do not promise a cure
  4. Refer to specialist when in doubt
  5. Do not abandon a patient without notice
  6. Prescribe only within your competence
  7. Keep up to date with medical knowledge
  8. Follow standard protocols

Consumer Protection Act and Medical Negligence

Under CPA 2019, patients are consumers and medical services are services. Patients can file complaints before:
  • District Consumer Forum (up to ₹1 crore)
  • State Commission (₹1-10 crore)
  • National Commission (above ₹10 crore)

Professional Indemnity

Doctors are advised to take professional indemnity insurance to cover civil liability arising from negligent acts.

2. AUTOEROTIC SEXUAL ASPHYXIA

Definition

Autoerotic asphyxia (also called sexual asphyxia or asphyxiophilia) is the practice of intentionally producing cerebral hypoxia/anoxia during masturbation or sexual activity to heighten sexual arousal and intensify orgasm, by partially restricting oxygen supply to the brain.

Mechanism of Increased Sexual Pleasure

  • Cerebral hypoxia causes lightheadedness, altered consciousness, and heightened sensory awareness
  • Compression of carotid arteries stimulates carotid body, causing lightheadedness
  • Engorgement of cerebral veins causes a floating/euphoric sensation
  • This combination mimics and amplifies orgasmic sensations

Methods Used

  1. Ligature around the neck (most common) - rope, belt, tie, cord
  2. Plastic bag over the head (suffocation)
  3. Chemical inhalants - butane, freon, chloroform
  4. Chest compression - partner presses on chest
  5. Hanging (most dangerous - accounts for most accidental deaths)
  6. Drowning/submerging face in water

Characteristics / Scene Findings

  1. Predominantly males (95%), usually 15-30 years; rarely females
  2. Elaborate escape mechanism found - designed to release pressure before loss of consciousness (e.g., slip knot, foot noose allowing lowering of body)
  3. Pornographic material present at scene (magazines, videos)
  4. Erotic paraphernalia - bondage equipment, cross-dressing
  5. Mirror at scene to watch themselves
  6. Masturbatory evidence - ejaculation, tissues
  7. Padding under the ligature (to prevent discomfort/marks)
  8. Body found in a kneeling, sitting, or standing position (rarely fully suspended)
  9. Evidence of previous attempts - old ligature marks, worn areas on ligature attachment points

How Death Occurs

Death occurs accidentally when the escape mechanism fails:
  • Loss of consciousness before completing the release
  • Knot tightens beyond expected limit
  • Emotional collapse/accidental full suspension
  • Equipment failure

Autopsy Findings

  1. Asphyxial signs: cyanosis, petechiae (conjunctival and skin), congestion
  2. Ligature mark around neck - horizontal or oblique, with padding marks
  3. Seminal fluid/ejaculate may be present
  4. Evidence of cross-dressing
  5. Injuries from bondage or restraint

Medico-legal Importance

  1. Distinguishing from suicide/homicide - this is the most critical medico-legal point
  2. Scene investigation is paramount - escape mechanisms, pornography, no suicide note, history of similar episodes
  3. Family often conceals the true circumstances (social stigma)
  4. Not classified as suicide - it is accidental death
  5. Death certificate should state "accidental asphyxia" not suicide
  6. Life insurance claims may depend on this distinction

Differential Diagnosis

FeatureAutoerotic AsphyxiaSuicide by Hanging
Escape mechanismPresentAbsent
Pornographic materialUsually presentAbsent
Padding under ligatureCommonAbsent
Suicide noteAbsentOften present
EjaculationMay be presentAbsent
Previous attemptsUsuallyNo (or previous cuts)
PositionPartial suspensionUsually full suspension

5 MARKS

3. PUTREFACTION

Definition

Putrefaction is the decomposition of organic matter (body tissues) by the action of saprophytic bacteria and body enzymes (autolysis), resulting in gradual breakdown of tissues into gases, liquids, and salts.

Factors Affecting Rate of Putrefaction

Accelerating factors:
  • High temperature (optimal 70-100°F)
  • High humidity
  • Trauma/wounds
  • Septicemia/infection at time of death
  • Stout/obese body
  • Shallow burial
  • Warm weather/summer
Retarding factors:
  • Cold temperature
  • Dry environment
  • Deep burial in dry soil
  • Antimicrobial drugs taken before death
  • Arsenic/antimony poisoning (preserves the body)
  • Embalming

Stages of Putrefaction

1. Fresh Stage (0-3 days):
  • Body looks pale/normal initially
  • Abdomen becomes greenish (right iliac fossa first, due to cecum)
  • Putrefactive green discoloration appears in 24-48 hours in warm weather
2. Bloat Stage (3-5 days):
  • Gas production by bacteria (H2S, NH3, methane, CO2)
  • Bloating of abdomen, face, scrotum
  • Skin blisters filled with sanguineous fluid
  • Eyes bulge; tongue protrudes (can mimic manual strangulation)
  • Liquefaction of soft tissues begins
3. Active Decay (5-10 days):
  • Collapse of bloat as gases escape
  • Strong putrefactive odor (cadaverine, putrescine)
  • Marbling - green/black discoloration along blood vessels (due to H2S + Hb = sulfhemoglobin)
  • Skin slippage
4. Advanced Decay / Skeletonization:
  • Soft tissues liquefy and drain
  • Hair and nails fall out
  • In warm climate, skeletonization in 1-3 months

Putrefaction Changes Sequence

  • Greenish discoloration: Right iliac fossa first (24-48 hrs warm weather)
  • Marbling: 3-5 days
  • Bloating: 3-7 days
  • Skin slippage: 5-7 days
  • Liquefaction: 2-3 weeks
  • Skeletonization: 1-3 months

Medico-legal Importance

  1. Helps estimate time since death
  2. Changes in putrefaction can alter cause of death findings
  3. Poisons (arsenic) inhibit putrefaction - body preserved for examination
  4. Hemorrhages and petechiae become indistinguishable
  5. Internal organs become unrecognizable in advanced putrefaction

4. COCAINE

Source

Cocaine is an alkaloid derived from leaves of Erythroxylon coca plant, grown in South America (Peru, Bolivia).

Forms

  1. Cocaine hydrochloride (HCl salt) - white crystalline powder, soluble in water; snorted or injected
  2. Crack cocaine (freebase) - smokeable form; more potent; made by treating HCl with baking soda/ammonia

Pharmacology

  • Mechanism: Blocks reuptake of dopamine, norepinephrine, and serotonin in the synaptic cleft
  • Also acts as local anesthetic by blocking sodium channels (Na+ channel blockade)
  • Half-life: 1 hour; metabolized in liver to benzoylecgonine (main metabolite in urine - used for drug testing)

Uses

  1. Topical local anesthetic (ENT surgery - nasal and throat procedures)
  2. Vasoconstrictor in nasal surgery
  3. Schedule I narcotic drug in India (under NDPS Act 1985)

Routes of Administration (Illicit)

  1. Intranasal snorting ("sniffing")
  2. Intravenous injection
  3. Smoking crack cocaine
  4. Gingival/buccal application

Acute Cocaine Poisoning

CNS: Euphoria, talkativeness, restlessness, excitement, hallucinations ("cocaine bugs" - formication/Magnan's sign - sensation of insects crawling under skin), convulsions, coma
CVS: Tachycardia, hypertension, arrhythmias, coronary vasospasm, MI (even in young individuals)
Local: Nasal septal perforation (chronic snorting)

Chronic Cocaine Poisoning

  1. Emaciation, malnutrition
  2. Nasal septal ulceration and perforation
  3. Parkinsonian tremors
  4. Paranoid psychosis ("cocaine psychosis")
  5. Tactile hallucination - Magnan's sign / cocaine bugs
  6. Sexual dysfunction
  7. Premature aging

Cause of Death

  • Respiratory failure, cardiac arrhythmia, stroke
  • Cocaine is the most common cause of MI in young adults (drug-related)

Medico-legal Importance

  1. Regulated under NDPS Act 1985 in India
  2. Urine drug screen: benzoylecgonine (positive for up to 3-4 days; chronic users up to 3 weeks)
  3. Sudden death may occur even with first dose
  4. Mixed with heroin ("speedball") - responsible for celebrity deaths

5. GUSTAFSON'S METHOD OF AGE ESTIMATION

Introduction

Proposed by G. Gustafson (1950), a Swedish forensic dentist. It estimates age of an individual from examination of ground sections of teeth using 6 dental parameters (criteria).

The Six Parameters (Mnemonic: ATRCPS)

Each parameter is graded on a 0-3 scale (0 = no change, 1 = slight, 2 = moderate, 3 = extreme)
ParameterChangeSignificance
A - AttritionWearing down of occlusal surfaceIncreases with age
T - Translucency of rootRoot dentine becomes translucent from apex upwardIncreases with age; most reliable
R - Root resorptionResorption of root apexIncreases with age
C - Cementum appositionDeposition of cementum at root apexIncreases with age
P - PeriodontosisRecession of periodontal membrane from CEJIncreases with age
S - Secondary dentine depositionNarrowing of pulp chamberIncreases with age

Scoring

  • Each parameter scored 0, 1, 2, or 3
  • Total score (sum of all 6) ranges from 0-18
  • Formula: Age = 11.43 + (4.56 × Total Score)
  • Accuracy: ± 3.6 years

Advantages

  1. Can be used even in decomposed or carbonized bodies where soft tissue methods fail
  2. Teeth are the most durable tissue (resist heat, trauma, decomposition)
  3. Applicable when only teeth are available
  4. Provides age range with reasonable accuracy

Limitations

  1. Requires section of tooth - destructive method
  2. Not applicable to children (deciduous teeth have different parameters)
  3. Attrition varies with diet (vegetarians show more attrition)
  4. Observer bias in grading
  5. Age accuracy decreases with extremes of age

Modifications

  • Johanson (1971) modified the scale to 0, 0.5, 1, 1.5, 2, 2.5, 3 (more grades)
  • Bang and Ramm (1970) - root translucency alone is highly reliable

6. SIDS - SUDDEN INFANT DEATH SYNDROME

Definition

SIDS is defined as the sudden unexpected death of an apparently healthy infant under 1 year of age, which remains unexplained after a thorough case investigation, including complete autopsy, examination of the death scene, and review of the clinical history.
Also called: "Cot death" or "Crib death"

Epidemiology

  • Most common cause of death between 1-12 months of age
  • Peak incidence: 2-4 months of age
  • More common in males (60%)
  • More common in winter months
  • More common in premature and low birth weight babies
  • More common in prone sleeping position

Etiology (Multifactorial - Triple Risk Model)

SIDS results from:
  1. Vulnerable infant - genetic predisposition, immature brainstem
  2. Critical developmental period - 2-4 months
  3. External stressor - prone sleeping, overheating, smoke exposure
Brainstem hypothesis: Defect in serotonergic neurons in arcuate nucleus of medulla that control autonomic responses to hypoxia and CO2 buildup - infant fails to arouse from sleep when hypoxic.

Risk Factors

  1. Prone (face down) sleeping - most important modifiable risk factor
  2. Soft bedding / over-bundling
  3. Maternal smoking during pregnancy
  4. Low socioeconomic status
  5. Prematurity / low birth weight
  6. Male sex
  7. Previous near-SIDS (ALTE - Apparent Life-Threatening Event)
  8. Young maternal age
  9. Multiple births

Autopsy Findings (None are pathognomonic - diagnosis by exclusion)

  1. Petechial hemorrhages on thymus, pleura, pericardium (Tardieu's spots - most consistent finding ~80%)
  2. Pulmonary congestion and edema
  3. Liquid blood in heart
  4. Full stomach - feeding shortly before death
  5. Microscopic: Astrogliosis of brainstem

Medico-legal Importance

  1. Must be differentiated from infanticide (smothering/overlaying)
  2. Post-mortem must exclude all natural and unnatural causes
  3. Recurrence in siblings raises suspicion of non-accidental injury
  4. "Back to Sleep" campaign reduced SIDS incidence by 50%
  5. SIDS is a diagnosis of exclusion

7. CIVIL RESPONSIBILITIES OF A MENTALLY ILL PERSON

Relevant Law

  • Mental Healthcare Act 2017 (replaced Mental Health Act 1987)
  • Indian Penal Code / Bharatiya Nyaya Sanhita

Testamentary Capacity (Making a Will)

A mentally ill person CAN make a valid Will if at the time of making the Will:
  1. He understands the nature of the act (making a will)
  2. He knows the extent of his property
  3. He knows the natural objects of his bounty (legal heirs)
  4. He is free from any delusion affecting the will A Will made during a lucid interval is valid.

Contractual Capacity

  • Contracts entered into by a person of unsound mind are VOID under Section 11 & 12 of Indian Contract Act
  • Contracts made during a lucid interval may be valid

Marriage

  • Marriage is voidable (not void) if one party was of unsound mind at the time (Hindu Marriage Act)
  • Under Special Marriage Act: marriage void if either party is a lunatic or idiot
  • Unsoundness of mind is a ground for divorce

Guardianship

  • Court can appoint a guardian/curator for the person and property of a mentally ill person
  • Under Mental Healthcare Act 2017, nominated representative can manage affairs

Criminal Responsibility

  • Section 84 IPC / Section 22 BNS: Total exemption from criminal responsibility if at the time of act, the person was of unsound mind and did not know:
    • The nature of the act
    • That the act was wrong or contrary to law

Fitness to Plead (Competence to Stand Trial)

  • The person must understand the charges against him
  • Must understand court proceedings
  • Must be able to instruct his pleader
  • Unfit to plead = trial cannot proceed

Admission to Mental Hospital

Under MHA 2017:
  • Voluntary admission - patient can seek admission
  • Supported admission - with nominated representative
  • Independent admission - minor above 16 years

8. MTP ACT AND RECENT AMENDMENTS

Medical Termination of Pregnancy Act, 1971 (Amended 2021)

Original Act (1971) - Key Provisions

  • Permitted termination up to 20 weeks with opinion of:
    • 1 doctor: up to 12 weeks
    • 2 doctors: 12-20 weeks

Grounds for MTP (Section 3)

  1. Continuance would involve risk to life of the pregnant woman
  2. Grave injury to physical or mental health
  3. Substantial risk of physical/mental abnormality in child
  4. Pregnancy due to failure of contraception (for married woman)
  5. Pregnancy due to rape (mental anguish = grave injury to mental health)

MTP Amendment Act 2021 - Key Changes

  1. Upper gestational limit increased from 20 to 24 weeks for special categories:
    • Survivors of rape or sexual assault
    • Minors
    • Mentally ill/disabled women
    • Women with fetal anomalies
    • Change in marital status (widowhood/divorce during pregnancy)
    • Women with physical disabilities
  2. Medical Board constituted for pregnancies beyond 24 weeks (only for fetal anomalies incompatible with life)
  3. Unmarried women now included - the word "married woman" replaced with "any woman" regarding contraceptive failure
  4. Confidentiality - Identity of woman must not be disclosed (violation punishable)
  5. Opinion requirement:
    • Up to 20 weeks: 1 registered medical practitioner
    • 20-24 weeks: 2 registered medical practitioners
    • Beyond 24 weeks: State-level Medical Board

Registered Medical Practitioner (RMP) for MTP

  • Must have experience/training in gynecology/obstetrics
  • Defined in MTP Rules 2003

Place of MTP

  • Government hospital
  • Or place approved by government under MTP Act

9. DACTYLOGRAPHY (FINGERPRINT SCIENCE)

Definition

Dactylography (from Greek: daktylos = finger, graphe = writing) is the study of fingerprints for the purpose of identification. Also called dermatoglyphics.

Basis of Fingerprint Identification

  1. Permanence - Fingerprint patterns are formed at 6th month of fetal life and remain unchanged until decomposition after death
  2. Uniqueness - No two individuals have identical fingerprint patterns (even identical twins differ)
  3. Universality - Every person has fingerprints
  4. Indelibility - Pattern is maintained even after injury to superficial dermis (regenerates same pattern)

Types of Fingerprint Patterns (Galton's Classification)

  1. Loop (most common, 60-65%)
    • Ulnar loop (opens toward ulnar side)
    • Radial loop (opens toward radial side)
  2. Whorl (30-35%)
    • Plain whorl
    • Central pocket loop
    • Double loop
    • Accidental
  3. Arch (5%)
    • Plain arch
    • Tented arch

Henry's Classification System (Used in India)

  • Francis Galton described ridge details (minutiae) - 1892
  • Edward Henry developed the classification system used by Indian police (1897) - based on loops, whorls, arches
  • India adopted Henry's system in 1897

Ridge Details / Minutiae (Galton's Details)

  1. Ridge ending
  2. Bifurcation/fork
  3. Short ridge (island)
  4. Dot/point
  5. Enclosure/lake
  6. Spur/hook

Types of Fingerprints at Crime Scene

  1. Visible (patent) prints - directly visible (blood, oil, grease)
  2. Latent prints - invisible; need development techniques
  3. Plastic prints - 3D impression in soft material (wax, putty, fresh paint)

Development of Latent Prints

  • Aluminum powder (light surfaces)
  • Carbon/lamp black (light surfaces - dark powder for light surface)
  • Ninhydrin - reacts with amino acids; appears purple (Ruhemann's purple)
  • Silver nitrate - reacts with NaCl in sweat; turns brown in light
  • Cyanoacrylate fuming - for non-porous surfaces

Medico-legal Uses

  1. Identification of criminals
  2. Identification of unknown dead bodies
  3. Verification of identity documents
  4. Immigration/border security
  5. Banking and biometric authentication

10. ARSENIC POISONING

Sources

  • Rat poison (arsenious oxide / white arsenic)
  • Insecticides, weedkillers
  • Wood preservatives (chromated copper arsenate)
  • Drinking water (natural contamination - Bengal, Bangladesh)
  • Homicidal poisoning (classic "inheritance powder")

Forms

  • Arsenious oxide (As2O3) - white arsenic - most common poison
  • Arsenic trioxide - used in acute leukemia treatment (ATO)
  • Organic arsenicals in seafood (non-toxic)

Mechanism of Toxicity

  1. Trivalent arsenic (most toxic) binds to sulfhydryl (-SH) groups of enzymes
  2. Inhibits pyruvate dehydrogenase, Krebs cycle enzymes
  3. Uncoupling of oxidative phosphorylation
  4. Pentavalent arsenic substitutes for phosphate in ATP synthesis ("arsenolysis")

Acute Arsenic Poisoning

Dose: Lethal dose 100-300 mg Onset: 30 min - 2 hours after ingestion
GI Symptoms (Cholera-like picture):
  • Severe burning pain in throat, esophagus, stomach
  • Profuse rice-water diarrhea
  • Nausea, vomiting
  • Garlic odor of breath and vomitus
Other:
  • Intense thirst
  • Muscle cramps
  • Oliguria, hematuria
  • Convulsions, coma
  • Death from circulatory collapse within 24 hours (fulminant) or 3-5 days (gastroenteritis form)

Chronic Arsenic Poisoning (Arsenicosis)

Occurs with repeated small doses:
Skin changes (most characteristic):
  1. Mees' lines (Aldrich-Mees lines) - transverse white bands on nails; each line = one episode of poisoning; grow out at 1mm/month
  2. Diffuse hyperpigmentation - raindrop pattern ("raindrop pigmentation") - trunk
  3. Hyperkeratosis of palms and soles
  4. Arsenical keratosis - precancerous
  5. Melanosis and depigmentation (leucoderma)
  6. Bowen's disease (intraepidermal carcinoma)
Other organs:
  • Peripheral neuropathy (stocking-glove pattern)
  • Encephalopathy
  • Hepatotoxicity
  • Lung, bladder, skin cancer (carcinogen)
  • Alopecia

Autopsy Findings

  • Garlic odor
  • Gastroenteritis: congested, inflamed mucosa
  • Fatty degeneration of liver, kidney
  • Body may be well preserved (arsenic inhibits putrefaction)

Reinsch Test - Preliminary screening

  • Copper foil immersed in acidified urine/digest
  • Arsenic deposits as silvery-grey coating

Marsh Test - Confirmatory

  • Produces arsine gas (AsH3) from arsenic compounds
  • Arsine decomposed by heat - arsenic deposited as arsenic mirror on cold glass tube
  • Most important legal test for arsenic

Antidote

  • BAL (British Anti-Lewisite / Dimercaprol) - chelates arsenic
  • DMSA (Succimer) - oral chelator
  • Supportive treatment

Medico-legal Importance

  1. Most common poison used for homicide in India historically
  2. Chronic homicidal poisoning: slow accumulation, mimics natural disease
  3. Arsenic preserves body - can be detected years/decades after burial
  4. Hair analysis: arsenic deposits in hair at 1 cm/month - can timeline exposure
  5. Napoleon Bonaparte - alleged arsenic poisoning detected in hair analysis

3 MARKS

11. RUN AMOK

Definition

"Amok" (from Malay: amok = furious attack) is a sudden, unprovoked, indiscriminate attack of murderous frenzy directed at any person encountered, by an individual who was previously calm and apparently normal.

Features

  1. Sudden onset after a period of brooding/depression
  2. Individual runs wildly attacking everyone in sight with any weapon
  3. Total amnesia for the episode after recovery
  4. Either ends in death (killed by others), exhaustion and capture, or suicide
  5. Seen in Malay culture originally; now recognized worldwide
  6. Associated with major depression, schizophrenia, intoxication, or head injury

Medico-legal Importance

  • Criminal responsibility assessed based on mental state
  • If amok during psychotic episode - may plead insanity (Section 84 IPC / Section 22 BNS)
  • Mass killing events in USA/Europe - popularly linked to this concept

12. PHOSSY JAW (Phosphorus Necrosis of Jaw)

Definition

Phosphorus jaw or "phossy jaw" is necrosis of the jaw caused by chronic exposure to white (yellow) phosphorus fumes, historically seen in workers in match factories.

Cause

  • Chronic inhalation of white phosphorus vapors
  • Affects workers in match manufacturing industry (hence called "matchgirls' disease")

Pathology

  1. Phosphorus fumes enter jaw through carious (decayed) teeth
  2. Produce periosteal necrosis of mandible (lower jaw more commonly than maxilla)
  3. Sequestrum formation
  4. The jaw glows green/yellow-green in the dark (phosphorescence - pathognomonic feature)
  5. Offensive smell ("dead jaw")

Clinical Features

  1. Toothache, pain, swelling of jaw
  2. Bone necrosis and suppuration
  3. Fistula formation
  4. Green phosphorescent glow in the dark
  5. Sequestrum (dead bone fragment) formation
  6. Disfigurement

Medico-legal Importance

  1. Occupational disease - banned in most countries (White Phosphorus Matches Prohibition Act)
  2. Berne Convention 1906 - prohibited use of white phosphorus in matches
  3. Yellow phosphorus replaced by red/sesquisulphide phosphorus in safety matches
  4. Can also be seen in jaw osteonecrosis from bisphosphonate drugs (BRONJ - Bisphosphonate-Related Osteonecrosis of the Jaw)

13. COUP AND CONTRECOUP INJURY

Definitions

  • Coup injury: Brain injury occurring at the site of impact (at the point where the force is applied to the skull)
  • Contrecoup injury: Brain injury occurring at the site diametrically opposite to the site of impact

Mechanism

  1. When the head is moving and strikes a stationary object (fall):
    • The brain decelerates suddenly
    • Contrecoup injury predominates (brain slams against opposite inner surface of skull)
    • Example: Fall backwards - injury in frontal poles
  2. When a stationary head is struck by a moving object (assault):
    • Coup injury predominates
    • Brain moves along with skull at impact site
  3. When both occur: Coup-contrecoup pattern

Why Contrecoup Occurs

  • Negative pressure (cavitation) develops at the contrecoup site as brain lags behind the accelerating skull
  • Suction effect tears bridging veins and cortical vessels
  • Also: CSF dynamics and brain oscillation contribute

Types of Injuries

  1. Contusions (bruising of brain surface - most common)
  2. Lacerations
  3. Subdural/subarachnoid hemorrhage

Medico-legal Importance

  1. Helps determine whether the person was moving (fell) or was stationary (struck by weapon)
  2. Important in differentiating fall from assault
  3. If contrecoup injury predominates - suggests fall (accident)
  4. If coup injury predominates - suggests assault

14. HESITATION CUTS (TENTATIVE CUTS)

Definition

Hesitation cuts (also called tentative cuts, trial cuts, or hesitation marks) are multiple, superficial, parallel, incised wounds found at the beginning of a suicidal cut, indicating the victim's hesitancy before inflicting the fatal wound.

Characteristics

  1. Multiple, superficial wounds
  2. Parallel to each other
  3. Found near the main deep wound
  4. Typically in areas accessible to one's own hand (neck, wrist, forearm, elbow fossa, breast)
  5. Wounds increase in depth progressively - final wound is the deepest
  6. No defense wounds on hands/forearms (as it is self-inflicted)

Sites

  • Wrist (most common in self-cutting)
  • Neck (in suicidal cut throat)
  • Elbow (front of forearm)
  • Breast, abdomen (less common)

Medico-legal Importance

  1. Distinguish suicidal from homicidal cut throat
  2. Presence of hesitation cuts = strong evidence of suicide
  3. Homicidal wounds: usually single deep wound, defense wounds on hands, no hesitation cuts
  4. Accidental wounds: one wound, no pattern

15. SUMMONS

Definition

A summons is a legal document/notice issued by a Court, requiring a person (witness, accused, or expert) to appear before the court on a specified date and time.

Types

  1. Summons to witness - to appear and give testimony
  2. Summons to accused - to appear and answer charges
  3. Expert witness summons - to a doctor/expert to give opinion evidence

Procedure for Service

  1. Personally delivered to the individual
  2. If not available - to adult male member of family at residence
  3. If not found - affixed on outer door of residence
  4. By registered post (in some cases)

Doctor and Summons

  1. A doctor summoned as a witness must appear unless valid excuse
  2. Failure to comply = contempt of court
  3. Doctor can bring case records/notes
  4. Expert opinion is based on medical knowledge, not personal observation

Cognizable vs Non-cognizable

  • Cognizable offenses: Police can arrest without warrant, no summons needed initially
  • Non-cognizable: Court issues summons for appearance

16. DYING DECLARATION

Definition

A dying declaration is a statement made by a person who is about to die, relating to the cause and circumstances of the injuries leading to their impending death, when there is no hope of recovery.

Legal Basis

  • Section 32(1) of Indian Evidence Act 1872 (Section 26 of Bharatiya Sakshya Adhiniyam 2023)
  • Admissible as an exception to the hearsay rule
  • Based on the maxim: "Nemo moriturus praesumitur mentire" = "A man will not meet his Maker with a lie in his mouth"

Requirements for a Valid Dying Declaration

  1. The person must be under apprehension of impending death
  2. The statement must relate to the cause/circumstances of the death
  3. The person must be in a fit mental state to make the statement (compos mentis)
  4. Death must subsequently occur (in India; not required in some jurisdictions)
  5. The declarant must be competent (of sound mind at time of statement)

Who Can Record It

  1. Magistrate (preferred and most reliable)
  2. Doctor (if magistrate not available; must certify patient is in fit state)
  3. Police officer (if no one else available in emergency)
  4. Any person (if none of the above available)

Evidentiary Value

  • Can be the sole basis for conviction even without corroboration (if court is satisfied it is true and voluntary)
  • No need for oath
  • Not required to be signed by declarant

Medico-legal Importance for Doctor

  1. Doctor must certify the person is of sound mind and conscious
  2. Record medical opinion before and after declaration
  3. If patient not fit - must refuse; document reasons
  4. Recording on video strengthens evidentiary value

17. FRACTURES OF HYOID BONE WITH DIAGRAMS

Anatomy of Hyoid Bone

The hyoid bone is a U-shaped bone at the base of tongue, at the level of C3 vertebra. Consists of:
  • Body (central horizontal part)
  • Greater cornua (2 long lateral projections)
  • Lesser cornua (2 small projections at junction of body and greater cornua)
         [Lesser cornua]
              |  |
    [Greater horn]---[Body]---[Greater horn]

Ossification (Important for forensic age estimation)

  • Body ossifies at birth
  • Greater cornua ossify and fuse at 25-30 years
  • Union of greater cornua with body is complete by 30-40 years
  • This fusion is often mistaken for fracture in young persons

Fractures of Hyoid Bone

1. Fracture of Greater Cornua (most common)
  • Most common in manual strangulation (throttling)
  • Usually bilateral in strangulation
  • Unilateral fracture may occur with direct blow
2. Fracture of Body (less common)
  • Seen in karate/chop blows to neck
  • Rarely in strangulation
3. Fracture pattern in different deaths:
CauseSite of Fracture
Manual strangulationGreater cornua (bilateral) - most classic
Ligature strangulationLess common (ligature usually above hyoid)
HangingRare (< 10% cases) - if it occurs, greater cornua
Direct blow to neckBody or cornua

Diagram of Hyoid Bone

    Lesser cornua
      |       |
Greater     [BODY]     Greater
Cornua                  Cornua
(long)                  (long)

[X] = Common fracture site (junction of body and greater cornua)

Medico-legal Importance

  1. Fracture of hyoid strongly suggests manual strangulation
  2. Most reliable finding in throttling (along with bruises on neck)
  3. Must distinguish from:
    • Ossification variants (unfused segments = NOT fracture)
    • Post-mortem artefact during dissection
  4. Fresh fracture: sharp edges, surrounding hemorrhage, soft tissue tearing
  5. Old fracture: rounded edges, callus formation

18. TYPES OF HYMEN

Definition

The hymen is a thin, membranous fold of mucous membrane that partially occludes the vaginal orifice. It is present at the junction of the vestibule and vagina.

Types of Hymen (Based on Shape of Opening)

  1. Annular (Circular) Hymen
    • Circular opening in the center
    • Most common type
  2. Crescentic (Semilunar) Hymen
    • Crescent-shaped opening
    • Second most common
  3. Fimbriated (Denticular) Hymen
    • Irregular, frilly, serrated edges
    • Multiple notches
  4. Septate Hymen
    • Divided by a septum into two openings
    • May cause dysmenorrhea
  5. Cribriform Hymen
    • Multiple small perforations (sieve-like)
    • May cause painful menstruation
  6. Imperforate Hymen
    • No opening; completely covers vaginal orifice
    • Medical condition - causes hematocolpos (accumulation of menstrual blood)
    • Requires surgical incision (hymenotomy)
  7. Parous introitus (Caruncular hymen)
    • Remnants after childbirth = hymenal carunculae (carunculae myrtiformes)
    • Multiple small tissue tags around vaginal orifice
  8. Subseptate Hymen
    • Partial septum projecting from wall (not reaching other side)

Medico-legal Importance

  1. Presence of intact hymen does NOT prove virginity (hymen can be elastic / stretched without tearing)
  2. Rupture does NOT prove sexual intercourse (can rupture from physical activity, masturbation, tampon use)
  3. Forcible defloration: tears (lacerations) typically at 5 and 7 o'clock positions (posterior commissure)
  4. Old tears become healed scars with smooth edges
  5. Fresh tears: red, raw, bleeding edges
  6. Forensic examination should note: type, state (intact/torn), site of tears, healed/fresh

19. JOULE'S BURN (ELECTRICAL MARK / ELECTROTHERMAL INJURY)

Definition

A Joule's burn (also called electrical mark, entry wound, or contact mark) is the localized thermal injury produced at the site of entry of electrical current into the body, due to conversion of electrical energy into heat (as per Joule's law: H = I²Rt).

Characteristics

  1. Shape: Often cup-shaped, punched-out, crater-like
  2. Color: Yellow-white or gray-white center with reddish/hyperemic halo
  3. Surface: Raised, hardened, dry, leathery
  4. Size: Small (few mm) to larger depending on contact area
  5. Microscopy:
    • Nuclei of basal cells elongated and palisaded ("streaming of nuclei")
    • Separation of epidermis
    • Vacuolation of cells
  6. May show impression of wire/conductor surface

Mechanism

  • High electrical resistance of skin converts electrical energy to heat
  • Temperatures may reach 1000°C at contact point
  • Coagulative necrosis of epidermis and dermis

Features Differentiating Entry from Exit Wound

FeatureEntry (Joule's burn)Exit wound
ShapePunched-out, cup-shapedExplosive, irregular
EdgesRegular, well-definedIrregular, blown out
AppearanceDepressed craterLarger, ragged

Medico-legal Importance

  1. Confirms site of electrical contact
  2. Helps identify homicide vs accident (unusual site, multiple marks)
  3. Lightning entry: Filigree/arborescent burns (feathering marks)
  4. High voltage: may cause metallic deposition at entry
  5. Absence of Joule's burn does NOT exclude electrocution (if large contact area - bath, wet surface)

20. BANSDOLA

Definition

Bansdola (also spelled Bandola or Bans-dola) is a form of torture/homicide practiced in India, particularly in older times, in which the victim is tied in a bent position between two bamboo poles with the spine in extreme hyperflexion, causing death by mechanical asphyxia and spinal injury.

Mechanism

  1. The victim's body is tied between two bamboo poles
  2. The bamboo poles are sprung together, bending the spine forcibly
  3. The person may also be swung between the poles
  4. Death results from:
    • Traumatic asphyxia (compression of thorax)
    • Spinal cord injury / vertebral fractures
    • Internal organ rupture (liver, spleen)
    • Multiple rib fractures

Autopsy Findings

  1. Ligature marks on wrists and ankles (from binding)
  2. Fractures of ribs and spine (thoracic and lumbar vertebrae)
  3. Injuries to internal organs (liver, spleen, kidney)
  4. Asphyxial signs (petechiae, cyanosis)
  5. Bruising of chest and back

Medico-legal Importance

  1. Evidence of torture/homicide
  2. Presents as multiple rib fractures + spinal fractures + asphyxia
  3. Must be differentiated from blunt force injuries from other causes
  4. Historical form of judicial/extrajudicial torture in India
  5. Recognized in FMT as a specific form of mechanical asphyxia
All answers are compiled as per Rajesh Bhardale's FMT textbook curriculum and standard Indian FMT examination format. Key points, definitions, and classifications are examination-ready.
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