Professional Misconduct (Infamous Conduct in Professional Respect)

Definition

"Any conduct of the registered medical practitioner which might reasonably be regarded as disgraceful or dishonorable. The conduct of the Doctor is judged by professional men of good repute and competence. It involves an abuse of professional position."

• It is sometimes called "the professional death sentence" because penal erasure (removal of name from the medical register) deprives the practitioner of all privileges of a registered practitioner.

Disciplinary Control

1. Issue a warning notice for unethical practices
2. Remove the name of the practitioner from the register (temporarily or permanently) after enquiry proving serious professional misconduct
3. Restore the name so removed

Judicial Procedure

1. When a practitioner has been convicted of a cognizable offence, censured by a judicial/competent authority, or found prima facie guilty of serious professional misconduct
2. By complaint from any person or body
3. Suo motu by the Council

Procedure of Enquiry on Complaint

1. The Registrar submits the complaint to the President
2. Matter is referred to the Sub-committee or Executive Committee for investigation and legal advice
3. If no prima facie case: complainant is informed
4. If enquiry warranted: notice is issued to the practitioner specifying the charge; the practitioner must answer in writing and appear before the Council
5. At hearing, both complainant (or legal adviser) and practitioner must be present
6. After conclusion of evidence, vote is taken and judgment given
7. If the majority confirms the charge is proved: Council votes again - either remove name from register or warn the practitioner

Acts Constituting Professional Misconduct (Warning Notice List)

The Most Serious Misconducts - "The 6 A's"

1. Adultery - arising out of professional relationship
2. Advertising - self-promotion
3. Abortion - unlawful termination of pregnancy
4. Association with unqualified persons in professional matters
5. Addiction to drugs
6. Alcohol - consumption of alcohol at the workplace

Erasure of Name from Medical Register

1. After death of the registered practitioner
2. Entries made in error or as a result of fraud
3. Penal erasure: the main cause - serious professional misconduct - called "the professional death sentence," depriving the practitioner of all privileges of a registered practitioner

Medical Negligence / Medical Malpractice

a) Definition of Medical Negligence / Medical Malpractice

"Professional negligence is defined as absence of reasonable care and skill, or willful negligence of a medical practitioner in the treatment of a patient, which causes bodily injury or death of the patient."

• Negligence = doing something one is NOT supposed to do, OR failing to do something one IS supposed to do.
• Medical negligence is a part of the law of torts (a tort = a civil wrong for which the sufferer can seek compensation through legal action).
• It is also called Malpractice (Malpraxis).

1. Improperly/unjustifiably deviating from accepted practices
2. Employing accepted practices but doing so unskillfully

b) Elements of Negligence (The 4 D's)

• "But for" test: But for the doctor's breach, the patient would not have been injured
• Increased/multiplied risk test: The doctor's breach increased the risk of injury

c) Types of Negligence with Examples

1. Civil Negligence

• A patient (or relative, in case of death) brings suit in civil court for compensation
• A doctor sues for fees and the patient alleges professional negligence in defense

1. Refusal to admit patients requiring urgent hospitalization
2. Failure to obtain informed consent
3. Failure to examine the patient personally
4. Not ordering X-ray where history suggests fracture/foreign body
5. Misreading X-ray or failing to get it read by a competent person
6. Administration of incorrect drugs or drugs meant for another patient
7. Mislabelling blood/IV fluid bottles
8. Failure to attend the patient in time
9. Wrong diagnosis due to absence of skill/care
10. Failure to give proper post-operative care or instructions
11. Failure to warn of side-effects
12. Giving overdose or prescribing a drug that previously caused adverse reaction
13. Premature discharge of the patient
14. Experimenting on patients without consent

2. Criminal Negligence

1. A doctor shows gross absence of skill or care resulting in serious injury or death
2. A doctor performs an illegal act
3. Death of an assaulted person is attributed to the doctor's negligent treatment

1. Indifference to an obvious risk of injury to health
2. Actual foresight of the risk but continuation of the same treatment
3. Appreciation of the risk and intention to avoid it, but showing a high degree of negligence in attempted avoidance
4. Inattention or failure to avoid a serious risk - going beyond mere inadvertence

• Gross lack of competence / gross inattention / gross recklessness / wanton indifference to patient safety
• An extreme departure from the ordinary standard of care
• Such disregard for life and safety as to amount to a crime against the State

3. Contributory Negligence

Any unreasonable conduct or absence of ordinary care on the part of the patient which, combined with the doctor's negligence, contributed to the injury as a direct proximate cause - without which the injury would not have occurred.

1. Failure to give accurate medical history
2. Failure to cooperate with reasonable instructions
3. Refusal to take suggested treatment
4. Leaving hospital against medical advice
5. Failure to seek further help when symptoms persist

• The doctor's negligence is NOT the sole proximate cause of injury
• If doctor and patient are both negligent simultaneously - good defense for the doctor
• Normally only a partial defense - court may reduce damages proportionally (doctrine of comparative negligence)
• Last Clear Chance Doctrine: Even if patient was negligent, doctor is still liable if he discovered the danger while there was still time to avoid injury
• Good Samaritan Doctrine: One assisting another in serious danger cannot be charged with contributory negligence unless assistance was reckless

4. Corporate Negligence

Defences of a Doctor Against a Charge of Medical Negligence

1. No Duty Owed to the Plaintiff

2. Duty Discharged According to Prevailing Standards

3. Misadventure (Therapeutic Misadventure)

• Therapeutic misadventure - injury or death during treatment
• Diagnostic misadventure - harm during a diagnostic procedure
• Experimental misadventure - harm during an agreed experimental study

• Adverse/hypersensitivity reactions to drugs, if proper history was taken and informed consent obtained
• Rare anaphylactoid reactions even when sensitivity history was negative

4. Error of Judgement

1. He acted with ordinary care and secured all necessary data on which to base a sound judgement
2. He failed to cure or a bad result followed despite exercising reasonable care and skill
3. His judgement conformed to accepted medical practice

"No doctor ensures success in his diagnosis or treatment, nor guarantees a cure. There is always room for a difference of opinion among doctors."

5. Contributory Negligence

• Patient gave incomplete/inaccurate medical history
• Patient failed to follow reasonable instructions
• Patient refused the suggested treatment
• Patient left hospital against medical advice
• Patient failed to seek further help when symptoms persisted

6. Res Judicata (Section 337, BNSS)

7. Limitation

• Where breach of a specific contractual duty of care is involved: legal action can be initiated up to 3 years from the date of alleged negligence.

Summary Table

5. Privileged Communication

1. The communication must be made to a person having a direct interest in it, or in reference to which he has a duty. If made to more than one person or to a person without direct interest, the plea of privilege fails.
2. The doctor should first persuade the patient to obtain consent before notifying the authority.
3. If the doctor discloses secrets to protect community interest (under a moral and social obligation), he will not be liable for damages.

6. Vicarious Liability

1. There must be an employer-employee relationship
2. The employee's conduct must occur within the scope of employment
3. While on the job

1. In general practice, the principal doctor is responsible for any negligence of his assistant. Both may be sued, even if the principal had no part in the act. Same applies for non-medical servants.
2. Partners: When two doctors practice as partners, each is liable for the negligence of the other.
3. Independent doctors: If two or more independent doctors attend the same patient, each may be held liable for negligence of others that he observes (or in ordinary course should have observed) and allows to continue without objection.
4. Borrowed servant doctrine: A nurse employed by a hospital to assist in operations becomes the "borrowed servant" of the operating surgeon during the operation, and the hospital's servant for all other purposes. Liability shifts accordingly.
5. A doctor temporarily assisting another in the operating room is considered an employee of the principal surgeon.
6. If a swab, sponge, or instrument is left in the patient's body after operation - the surgeon is liable.
7. A hospital, as employer, is responsible for negligence of all its employees (full-time, part-time, resident, visiting, permanent, temporary).
8. Hospital management is responsible for mistakes of resident physicians and interns performing normal duties.
9. A physician is responsible for acts of interns and residents carried out under his direct supervision and control.
10. Ordinarily, a surgeon is NOT liable for the negligence of the anaesthetist, and vice versa.
11. Physicians are NOT responsible for acts of a competent nurse/hospital personnel, unless carried out under their direct supervision.
12. A doctor who recommends another doctor to a patient (with due care) is NOT liable for that doctor's negligence.

7. Note on Euthanasia (Mercy Killing)

Types of Euthanasia

Legal Position in India

• Article 21 of the Constitution guarantees "Right to live" but does NOT imply "Right to die."
• The Supreme Court held that 'right to die with dignity' is a part of the right to life (Fundamental Right under Article 21) and allowed "Living Will" - where an ailing adult in conscious mind is permitted to refuse medical treatment or decide not to take treatment to embrace death naturally.

1. Can be executed only by an adult with a sound and healthy mind
2. Must be voluntarily executed based on informed consent
3. Expressed in clear and unambiguous terms
4. Signed before a First-class Judicial Magistrate
5. Must mention circumstances for withdrawal of treatment and name of guardian/close relative to authorize passive euthanasia
6. The treating physician must ascertain genuineness from the magistrate
7. The hospital medical board must authorize withdrawal of treatment

Related Concepts

• Assisted Suicide: A person providing information, guidance, and means to another to take his own life - with intention it will be used for that purpose.
• Terminal Sedation: Administration of morphine/similar drugs that have a dual effect of relieving pain and hastening death (aid-in-dying). If the physician knowingly prescribes this so the patient can end his life - it is physician-assisted suicide.

8. Principles of Medical Ethics

1. Respect for Autonomy

• Means "the person's own right or his own will"
• Autonomy = the ability of an individual to make a rational, uninfluenced decision
• It is a general indicator of a healthy mind and body
• Example: Dementia results in loss of autonomy (affects judgment, memory, rational thinking, and orientation)

2. Beneficence

• Means "do good" / "Fruitful result"
• Healthcare professionals should not only think about the patient's benefit, but also take positive steps to prevent harm
• Doctors should always tell patients the correct treatment and what is good for them

3. Non-maleficence

• Means "do no harm" (Primum non nocere)
• Many consider it the primary consideration - more important NOT to harm your patient than to do them good
• Part of the Hippocratic Oath
• Enthusiastic practitioners may use treatments they believe will do good without evaluating them for harm first

4. Justice

• Means "to be fair; equitable distribution of risks and benefits"
• Aristotle: Healthcare professionals should treat all patients equally, giving each "that which is his due"
• In research: investigators should ensure both groups have the same risks and benefits; results should be fairly distributed among beneficiaries
• No individual, group, or community should bear an unfair share of burdens or be unfairly omitted from benefits

• Code of Hammurabi (Babylonia, 1750 BCE) - earliest documented standards for medical practitioners
• Charaka's Oath (200 BCE) and Sushruta's Oath (1500 BCE) - foundational Indian medical ethics
• Hippocratic Oath (5th century BCE) - established beneficence, non-maleficence, justice
• Thomas Percival (1803) - coined "medical ethics" and "medical jurisprudence," wrote first modern code
• Declaration of Geneva (1948, WMA) - contemporary version of the Hippocratic Oath

9. Types of Consent

• Examination or treatment without consent is illegal and amounts to assault
• Patient can sue the doctor for not informing about the procedure, benefits, or risks

Kinds of Consent

1. Implied Consent

• When the patient cooperates with the physician having been fairly informed of what is to be done
• Examples:
  • A patient attending hospital or calling the doctor - implies consent to a general physical examination
  • A patient holding out his arm for an injection - implied consent
• This is the consent used in routine practice

2. Informed Express Consent

• Specifically stated by the patient - may be:
  • (a) Verbal - spoken agreement
  • (b) Written - documented in writing

1. The nature of his condition
2. The nature of the proposed treatment/procedure
3. Expectations and likelihood of success
4. Alternative courses of treatment available
5. Risks and benefits of both proposed and alternative procedures
6. Potential risks of NOT receiving treatment
7. Known material inherent risks

Exceptions to Informed Consent

1. Emergency - when consent cannot be obtained and delay would harm the patient
2. Therapeutic privilege - when full disclosure of remote/theoretical risks could frighten an emotionally disturbed patient and cause refusal of necessary treatment
3. Patient waives the right - delegates the right to consent to the doctor or a close relative (waiver must be clearly written in the record)

1. Res Ipsa Loquitur

1. In the absence of negligence, the injury would not have occurred ordinarily
2. The doctor had exclusive control over the injury-producing instrument or treatment
3. The patient was NOT guilty of contributory negligence

1. Prescribing an overdose of medicine producing ill-effects
2. Giving poisonous medicine carelessly
3. Failure to give anti-tetanic serum in injury cases, causing tetanus
4. Burns from application of hot water bottles or X-ray therapy
5. Breaking of needles
6. Failure to remove swabs during operation (leading to complications/death) - classic example
7. Blood transfusion misadventure
8. Loss of use of hand due to prolonged splinting

Landmark Case - Mohn vs Osborne: An abdominal operation was performed; swab count was reported correct. Two months later, a further operation revealed a swab under the liver. Patient died. Court held the doctor negligent - res ipsa loquitur applied.

2. Professional Death Sentence (Penal Erasure)

1. After the death of the registered practitioner
2. Entries made in error or as a result of fraud
3. Penal erasure - the main cause - serious professional misconduct (infamous conduct)

• The practitioner cannot legally practice medicine
• Deletion is widely published in local press and publications of all Medical Associations/Societies, so the erased practitioner cannot practice anywhere
• The Council is also authorized to direct restoration of the name so removed

3. Dichotomy

Receiving or giving commission or other benefits to a professional colleague, manufacturer or trader in drugs or appliances, chemist, dentist, etc.

• A doctor receiving a cut from a surgeon for referring a patient for surgery
• A doctor taking commission from a pharmaceutical company for prescribing their drug
• A doctor paying a chemist for directing patients to him

4. Malingering

• Soldiers/policemen - to avoid duties
• Prisoners - to avoid hard work
• Businessmen - to avoid business contracts
• Workmen - to claim compensation
• Beggars - to attract public sympathy
• Criminals - to avoid legal responsibility

1. Injuring the nasopharynx with a sharp instrument, swallowing blood and regurgitating it - to mimic hematemesis
2. Puncturing anal/vaginal mucosa to produce bleeding
3. Excessive intake of digitalis to simulate a heart condition
4. Eating large amounts of carrot to produce carotenemia - to simulate jaundice
5. Chronic ingestion of coumarin to induce hemorrhagic diathesis

• History from patient, relatives, and friends - note inconsistencies
• Signs and symptoms usually do not conform to any known disease
• Keeping patient under observation without his knowledge
• Complete examination after removing bandages and washing the part
• Rarely, an anaesthetic may be given to detect malingering

5. Warning Notice

• Every registered medical practitioner is required to observe certain prescribed rules of conduct contained in the Code of Medical Ethics published by the NMC and State Medical Councils
• The Council stresses this list is NOT exhaustive - each case is decided on its own specific facts and merits
• The Council can consider ANY form of alleged professional misconduct, even if not in the Warning Notice list

1. Improper conduct/association with a patient
2. Conviction for offences involving moral turpitude
3. Issuing false/misleading certificates
4. Contravening Drugs & Cosmetics Act
5. Advertising and self-promotion
6. Dichotomy (fee-splitting)
7. Covering (assisting unqualified persons)
8. Running an open shop for sale of medicines
9. Disclosing patient's secrets without justification
10. Claiming to be a specialist without a special qualification
11. Drunk and disorderly interfering with practice
12. Sex determination with intent to terminate a female fetus

6. Professional Secrecy (Confidentiality)

1. A doctor should not discuss a patient's illness with others without consent
2. For a major patient - cannot disclose to parents/relatives even if they pay the fees
3. Cannot answer enquiries by third parties (even near relatives) without patient consent
4. Cannot disclose information even when requested by a public/statutory body (except notifiable diseases)
5. For husband and wife - facts of one's illness cannot be disclosed to the other without consent
6. In divorce/nullity cases - no information without consent
7. Government medical officers are also bound by professional secrecy
8. A factory/firm medical officer cannot disclose examination results to employers without the employee's consent

1. Notifiable/infectious diseases
2. Court order by presiding judge
3. Serious and identified risk to a specific person or community
4. Venereal disease (e.g., syphilitic patient about to marry who refuses advice)
5. Employees in occupations dangerous to the public (bus/engine driver with epilepsy, etc.)

Note: The library does not contain a textbook specifically authored by "Khazi." The content below is from The Essentials of Forensic Medicine and Toxicology, 36th edition (K.S. Narayana Reddy), which covers this topic in full detail. If you meant a different author name, please clarify.

Comparative Techniques Used for Identification of a Person

1. Anthropometry (Bertillon System)

2. Dactylography (Fingerprint System)

• First used in India in 1858 by Sir William Herschel in West Bengal
• Systematized by Sir Francis Galton in 1892
• First Fingerprint Bureau established in Kolkata

Fingerprint Classification (Fig. 4.44):

Key Properties of Fingerprints:

1. Ridge pattern appears between 12-16 weeks of intrauterine life
2. Permanent and distinctive for each individual throughout life
3. The pattern is different even in identical twins
4. Patterns are not inherited - paternity cannot be proved through fingerprint patterns
5. Individuality: Only 1 chance in 64 billion of two persons having identical fingerprints (Quetlet's rule)
6. Minimum points of comparison for positive identification = 8 (as per Supreme Court ruling)

Identification Process:

• Ridge endings
• Bifurcations
• Lake formations
• Island formations

Types of Fingerprints:

Development of Latent Prints:

1. Powder dusting method: Colored powder (grey = chalk + mercury; white = lead carbonate/French chalk for dark surfaces) - visualized by photography or oblique lighting
2. Chemical treatment: 5% silver nitrate solution + sodium thiosulphate fixation; iodine vapors or osmium tetroxide (for paper/wood/fabrics)
3. Electron autoradiography: High-energy X-ray beam + scanning electron microscope; even 10-year-old fingerprints can be developed

Fingerprints in Decomposed Bodies:

1. Ridges present in both dermis and epidermis until decomposition separates them
2. In advanced putrefaction/drowning - skin found loose like a glove - remove, preserve in formalin, use for impressions
3. Prints obtainable from dermis after epidermis is lost
4. Shrivelled fingers: immerse in 20% acetic acid for 24-48 hours, OR inject air/glycerine/liquid paraffin into the bulb
5. Dehydrated skin: soak in 3% potassium hydroxide in warm water
6. Fragile skin: apply lead carbonate mixed with paraffin and X-ray
7. Mummified/wrinkled fingers: inject liquid paraffin or formalin into palmar aspects

Poroscopy (Henry Locard):

• Further study of fingerprints using the pores on ridges
• Each mm of ridge contains 9-18 pores
• Pores are permanent and vary in size, shape, width, starting and stopping
• Useful when only fragments of fingerprints are available

Related Methods:

• Ridgeology: Study of friction ridges (edges of ridge units varying in size, shape, alignment)
• Edgeoscopy: Study of edges of friction ridges - shows 7 characteristic features

Computerization:

Medicolegal Importance:

1. Identifying criminals from impressions left at crime scenes (weapons, furniture, doors, utensils, clothes)
2. Identifying suicides, deserters, persons with loss of memory, accident victims, decomposing bodies
3. Preventing accidental exchange of newborn infants
4. Prevention of impersonation
5. Maintenance of identity records; fingerprints on cheques, bank notes, legal documents

• For criminals: all 10 fingers taken
• For civil purposes: left thumb impression only

3. Footprints (Podogram)

• Skin patterns of toes and heels are as distinct and permanent as fingers
• Used in maternity hospitals to prevent exchange of infants
• Step length: Adult woman 45-55 cm; adult male 63-70 cm
• Footmarks recorded by photography, casts, or lifting
• A footprint in yielding soil indicates shoe size, approximate weight, and peculiarity of gait
• Imprint on loose sand = smaller than foot; imprint on mud/clay = larger than foot

4. Palatoprints

• Structural details of rugae in the anterior part of the palate are individual-specific and permanent
• Used the same way as fingerprints
• Rugae categories (Lysell): Primary (>5 mm), Secondary (3-5 mm), Fragmented (2-3 mm)

5. Lipprints (Chelloscopy)

• Fissures and grooves on lips are characteristic of the individual
• Divided into 6 patterns (Suzuki): vertical, branched, intersected, reticular patterns, etc.
• 24 characteristic details identified
• Identification established if 7-9 characteristics tally
• Found on crockery, cloth, paper, windowpanes, cigarette ends

6. Ear Prints

• Ears have 4 basic shapes: oval, round, rectangular, triangular
• Most ear prints found on doors or windows
• Three prints taken from suspect: (1) Functional pressure, (2) Gentle pressure, (3) More pressure - on glass pane
• Comparison points: tragus, crus of helix, antitragus, lower and upper crura of antihelix
• Opinion given as: positive, highly probable, probable, possible, or no basis for comparison

7. Nose Prints

• Lines on the nose and shape of the nasal tip helpful in identification
• Chance impressions found on doors, walls, etc.

8. Retinal Scan

• Each person's retina has a unique pattern unchanged from birth to death - different even in identical twins
• Performed by casting low-energy infrared light into the eye for 15 seconds
• Results converted to computer code and stored in database
• 70 times more accurate than iris scans
• Nearly impossible to fake
• After death, retina decays quickly
• Patterns may be altered by cataracts, glaucoma, retinal degeneration, diabetes

9. Iris Scan

• The iris is the colored portion of the eye; coloring based on melanin pigment
• Though genetically linked, each individual's iris is unique and structurally distinct
• Iris is located using landmark features; distinct shape allows imaging and feature isolation

10. Skull-Photo Superimposition

• Determines whether a skull is that of the person in a photograph
• Photograph enlarged to natural size; skull photographed at same scale
• Two negatives superimposed by aligning interpupillary distances

1. Eyes within orbital plates, with canthuses aligned
2. Nasion
3. Prosthion (central line)
4. Nasal spine
5. Lower border of nose
6. Lower border of upper jaw
7. Zygomas below the eyes
8. Supraorbital ridges
9. Angle of the jaw
10. External auditory meatus
11. Teeth

Medico-Legal Importance of Disorders of Sexual Development (DSD)

Definition

The term "DSD" is considered less stigmatizing and more accurate than older terms like "intersex."

Classification (Davidson's 4 Groups)

1. Gonadal Agenesis

• Testes or ovaries fail to develop entirely
• Nuclear sex is negative

2. Gonadal Dysgenesis

• External sexual structures are present, but at puberty the testes or ovaries fail to develop

3. Disorders of Chromosomal Sex

• Anatomical structure is male, but nuclear sexing is female
• Sex chromosome pattern: XXY (47 chromosomes)
• Features: delay in puberty, behavioral disorders, mental retardation, absence of axillary and pubic hair, reduced chest/chin hair, gynaecomastia, azoospermia, low testosterone, sterility, increased urinary gonadotrophins, eunuchoidism, increased height
• Histology: testicular atrophy with hyalinisation of seminiferous tubules
• Hypergonadotropic hypogonadism

• Most common sex chromosome abnormality in females; incidence 1 in 2500 newborns
• Anatomical structure is female, but nuclear sexing is male
• Sex chromosome pattern: XO (45 chromosomes)
• Features at birth: oedema of dorsum of hands and feet, loose skin folds on neck, low birth weight, short stature
• Features at puberty: primary amenorrhoea, sterility, absent primary and secondary sexual characteristics, webbed neck, shield chest, wide-set nipples, high-arched palate, low-set ears, pigmented naevi, short 4th metatarsal, coarctation of aorta, septal defects, renal defects, diabetes mellitus

4. Disorders of Gonadal Sex

• Very rare condition
• Both ovary and testicle, or two ovotestes are present
• External genitalia of both sexes
• Gonad may be abdominal, inguinal, or labio-scrotal
• May have a uterus
• Phallus may be penile or clitoral; labia may be bifid or fused resembling scrotum
• Neither gonad is completely functional
• Somatic sex chromatin may be male or female

5. Disorders of Phenotypic Sex

Medico-Legal Importance of DSD

1. Marriage

• A person with DSD may enter into marriage without disclosing their condition
• Marriage between persons of the same biological sex is void/voidable in law
• DSD may be grounds for nullity of marriage if the true sex was concealed

2. Nullity of Marriage

• Where a person registers as one sex but has the biological characteristics of another (e.g., Klinefelter's - anatomically male but genetically female), the marriage can be declared null and void

3. Divorce

• DSD-related sterility or sexual dysfunction can be grounds cited in divorce proceedings
• Sexual incapacity arising from DSD may be relevant

4. Heirship / Inheritance

• The sex of a person determines rights of inheritance under Hindu law, Muslim law, and other personal laws
• DSD creates legal confusion in determining legitimate heirship - especially if registered sex and biological sex differ

5. Legitimacy

• Questions of legitimacy of children may arise in DSD cases
• A person with testicular feminisation (XY) registered as female and married to a man cannot produce children - raising legitimacy questions

6. Rape

• Legal definition of rape involves the sex of both perpetrator and victim
• In DSD cases, the biological sex determines whether rape charges can be framed under applicable law (BNS)

7. Impotence and Sterility

• DSD conditions like Klinefelter's (azoospermia) and Turner's (ovarian dysgenesis) lead to sterility
• Impotence or sterility arising from DSD has medico-legal implications in marriage, divorce, and heirship cases

8. Sex Registration and Legal Identity

• The registered sex at birth vs. biological/chromosomal sex may differ
• Creates problems in identity documents, service eligibility (military, police), and sports competitions
• Courts may require medical/forensic examination to determine the "true sex"

9. Sports and Competitions

• Persons with DSD may have unfair advantage (e.g., high testosterone in female-to-male spectrum)
• Forensic sex determination is required by sports authorities

10. Concealed Sex

• Criminals may conceal their sex to avoid detection by changing dress or other methods
• Can be detected by:
  • General physical examination
  • Nuclear sexing (Barr body test, Davidson body test)
  • Gonadal biopsy (in fresh body)
  • In advanced putrefaction: identifying uterus or prostate (which resist putrefaction for a long time)

Methods Used for Sex Determination in DSD Cases

Note: In decomposed bodies, sex chromatin cannot be identified.

Note on Bite Marks and Medico-Legal Importance

Definition

Nature / Appearance of Bite Marks

• Bite marks comprise a crop of punctate haemorrhages varying from small petechiae to large ecchymoses merging into a confluent central bruise
• Teeth may cause clear, separate marks that run into each other as continuous impressions, bruises, and lacerations - or a combination of all these
• Front teeth (canine to canine) cause bite marks with an invariable gap at either side, representing separation of upper and lower jaws

Human vs Animal Bite:

• Suction petechiae without teeth marks (in sexual assault) are caused by the sucking effect of human bites, causing rupture of small venules and petechial haemorrhages

Common Situations Where Bite Marks Are Seen

1. Child abuse - marks seen anywhere on the body: arms, hands, shoulders, cheeks, buttocks, trunk
   • If the mark is of small size - could be a bite by a sibling
   • If of different size - could be an animal bite
2. Sexual assault - bites at breasts, neck, shoulders, thighs, abdomen, pubis or vulva
3. Police officers bitten by resisting offenders
4. Sporting events - football, wrestling
5. Assaults - anywhere on the body

Medico-Legal Aspects of Bite Marks

1. Self-inflicted bite marks: Seen at accessible parts of the body - shoulders, arms - usually seen in psychiatric patients, teenage girls, and older children
2. Accidental: Resulting from falls on to the face; biting of tongue and lips during epileptic fits

Bite Mark Investigation

Step 1: Photography

• Photographed from different angles with the plane of film at right angles to the lesion
• Accurate scale must be included in the photograph

Step 2: Swabbing of Saliva

• To identify or exclude the assailant
• 80% of people are "secretors" - they exude blood group substances in their saliva
• Plain cotton wool swabs are rubbed on the bite after moistening with water or saliva
• Swabs are deep frozen and sent to a serology laboratory

Step 3: Impression of Bite Mark

• Plastic substance (rubber/silicone-based medium with a catalytic hardener, or Plaster of Paris) is laid over the bite mark
• Hardens to produce a permanent negative cast of the lesion

Step 4: Skin Preservation

• Skin carrying the bite mark is removed and preserved in formalin for future examination
• Note: Formalin causes shrinkage and distortion, making tooth matching difficult

Preservation of Objects with Bite Marks:

• "Plastic" marks on butter, cheese, lard, wax, chocolates - stored in refrigerator (NOT deep-frozen, as they may become brittle and crack)
• Fruits (especially apples) - preserved in Campden solution (meta-bisulphate fluid used for fruit bottling)

Matching the Bite Mark with the Suspect's Dentition

1. Full informed written consent before examination of the suspect
2. Oral consent with at least one witness if written consent is not obtained

• Six upper and six lower front teeth give the most information
• Canines may provide particular help
• Premolars and molars are rarely useful (posteriorly positioned)

Medico-Legal Importance (MLI) of Bite Marks