Dying Declaration

Definition

Who Records It?

• Before recording, the doctor must certify that the declarant is conscious and mentally sound (compos mentis).

Key Rules for Recording

1. Statement must be recorded in the declarant's own words - no alteration.
2. Leading questions must NOT be asked; the declarant speaks freely.
3. Oath is NOT administered - based on the belief that a dying person tells the truth.
4. The statement must be of fact, not opinion.
5. If a point is unclear, clarifying questions may be asked - both question and answer must be recorded.
6. The statement is read back to the declarant; their signature or thumb impression is taken.
7. If the declarant becomes unconscious mid-recording, whatever has been obtained is signed and submitted.
8. If the person cannot speak but can make signs/gestures - this is valid and treated as a "verbal statement."

Admissibility in Court

• Admissible in India even if the declarant was not expecting death at the time of making the statement, as long as they were of sound mind.
• Admissible against the accused who killed the declarant AND all other persons involved in the same incident.
• Declaration is sent to the magistrate in a sealed cover and produced at trial.
• Accepted as evidence in criminal and civil cases where the cause of death is under inquiry.
• If the declarant survives, the declaration is NOT admitted as dying declaration but has corroborative value - the person is called for oral evidence.
• The person who recorded it must give evidence in court to prove it.

Dying Declaration vs. Dying Deposition

Importance

• Helps identify the offender.
• Can clear innocent persons.
• Has significant weight as dying persons are presumed to speak truth ("a man will not meet his Maker with a lie in his mouth").

Signs of Live Birth & Hydrostatic Test

(Forensic Medicine - MBBS)

PART 1: Signs of Live Birth

A. Respiratory Signs (Most Important)

• Present in 1 in 4 live births; absent in stillborns - good evidence of live birth.

B. Gastrointestinal Signs

• Air enters stomach first, then small intestine (1-2 hrs), colon (5-6 hrs), rectum (12 hrs).
• Presence of air in GIT = evidence of swallowing/breathing = live birth.

• Suggestive of live birth even if the child survived only a few hours. Absence of saliva suggests stillbirth.

• Presence of milk = definitive evidence of live birth (child fed after birth).

• Green viscid substance; completely expelled within 24-48 hours post-birth.
• Absence of meconium from lower bowel = child survived long enough to pass it.

C. Changes in Middle Ear

• Before birth: middle ear contains gelatinous embryonic connective tissue.
• After respiration: air replaces this gelatinous substance via Eustachian tube (within few hours to 5 weeks).
• Test: Open middle ear under water; remove tegmen tympani - positive if air bubbles come out.

D. Vascular / Umbilical Changes

• Umbilical artery: closes by 3rd day
• Left umbilical vein: obliterates by 4-5th day
• Ductus venosus: obliterates on 5th day
• Ductus arteriosus: obliterates on 10th day
• Foramen ovale: closes by 3rd month

E. Other Survival Signs

• Skin bright red at birth -> darker -> brick red -> yellow -> normal by 7th day
• Vernix caseosa persists 1-2 days
• Abdominal skin exfoliates for the first 3 days

PART 2: Hydrostatic Test (Raygat's / Lung Float Test)

Definition

• First described by Scheyer (1683)
• Also called: Raygat's test / Pulmonary Float Test

Principle

• Before respiration: Specific gravity of lungs = 1040-1050 (denser than water - sinks)
• After respiration: Specific gravity falls to 940 (lighter than water - floats)
• Because once alveoli are aerated, even compression cannot fully expel the trapped air.

Procedure (Step-by-Step)

• Floats = Positive test (air present = breathed)
• Sinks = Negative test (not breathed)

• If they float = positive
• If they sink = negative

Control: A piece of liver is dropped into water first. If liver also floats (due to putrefaction), the test is unreliable and of no use.

Interpretation

Fallacies of the Hydrostatic Test

A. Expanded Lungs May Sink (False Negative) - Giving wrong impression of stillbirth:

1. Pulmonary oedema, pneumonia, congenital syphilis
2. Atelectasis - feeble respiration / air not reaching alveoli
3. Air absorbed by blood after circulation continues post-respiration
4. Drowning - birth in toilet bowl or water bucket
5. More air expelled during expiration due to lung tissue recoil

B. Unexpanded Lungs May Float (False Positive) - Giving wrong impression of live birth:

1. Putrefactive gases - soft greenish bubbles that shift with pressure and sink under water
2. Artificial inflation - mouth-to-mouth resuscitation or tube blowing
3. Alcoholic fixation of the body

C. Test Not Necessary When:

• Foetus is less than 180 days gestation
• Foetus is a monster (grossly malformed)
• Foetus is macerated or mummified
• Umbilical cord is separated or cicatrized
• Stomach contains milk (definitive proof of live birth)
• Whole thoracic contents already float

Quick Comparison: Live Born vs. Dead Born

Antemortem Burns vs. Postmortem Burns

(Forensic Medicine - MBBS)

Why This Distinction Matters (Medico-legal Importance)

• Whether the deceased was alive when the fire started
• Whether death was due to burning or some other cause
• Whether it is homicide, suicide, or accident

Burns produced shortly before or after death cannot always be distinguished - either by naked eye or by microscopy. This is the key limitation.

Comparison Table: Antemortem vs. Postmortem Burns

Key Points on Blisters

Signs That Death Was Due to Burns (Burning as Cause of Death)

1. Antemortem blisters with vital reaction
2. Soot particles in air passages, oesophagus, and stomach
3. Cherry-red blood (carboxyhaemoglobin due to CO inhalation)
4. COHb > 30-40% in blood saturation

Absence of these signs suggests death occurred before the fire.

Important Limitation

Heat applied up to one hour after death can still produce a red line of erythema. Therefore, burns made immediately after death can closely simulate antemortem burns - making differentiation extremely difficult or impossible.

Memory Aid