Occasion, Cause and Effect of Facts under Section 5 of the Bharatiya Sakshya Adhiniyam, 2023: Meaning, State of Things, Opportunity and Case Laws

Section 5 is the second head of relevancy and the widest in its practical reach. Where Section 4 admits facts that form part of the transaction itself, Section 5 admits facts that stand outside the transaction but explain how it came about, what it produced, and the circumstances that made it possible. It is the provision under which the great bulk of circumstantial evidence in a criminal trial is received.

1. The Provision

Section 5, BSA — Facts which are occasion, cause or effect of facts in issue or relevant facts

Facts which are the occasion, cause or effect, immediate or otherwise, of relevant facts, or facts in issue, or which constitute the state of things under which they happened, or which afforded an opportunity for their occurrence or transaction, are relevant.

Section 5 corresponds to Section 7 of the Indian Evidence Act and is carried forward without material change. The words 'immediate or otherwise' are important: the connection need not be proximate, and a remote cause or a delayed effect is admissible provided the causal link can be shown.

2. The Five Categories

Category	Meaning	Illustration in practice
Occasion	The circumstance that furnished the occasion on which the fact in issue took place — the setting that made the event the one that occurred rather than some other	That the deceased was alone in the house on the night of the occurrence; that the victim was returning from a fair with money
Cause	The antecedent that produced the fact in issue, whether immediate or remote	That the accused had been dismissed from service by the deceased; that a defective brake produced the collision
Effect	The consequence produced by the fact in issue, whether immediate or remote	Injuries on the body; marks of a struggle at the scene; a bloodstained weapon; the condition of the room after the occurrence
State of things	The circumstances existing at the time under which the fact in issue happened	The state of the deceased's health before the symptoms ascribed to poison; the financial condition of a party at the date of an alleged transaction
Opportunity	A circumstance that afforded the accused the means or the occasion to do the act	That the accused had access to the house; that he alone had the key; that the deceased's habits, known to the accused, allowed poison to be administered

2.1 Occasion distinguished from cause and opportunity

The three are frequently confused because they overlap on the same facts. Occasion answers the question why the event happened then and there; it describes the setting. Cause answers the question what produced the event; it describes an antecedent that operated on it. Opportunity answers the question how the accused was able to do it; it describes access or means. A single fact may fall into more than one category, and nothing turns on the classification, since Section 5 admits all five equally.

3. The Illustrations to Section 5

Illustration	Facts	What is relevant, and under which limb
(a)	The question is whether A robbed B	That shortly before the robbery B went to a fair with money in his possession, and that he showed it, or mentioned that he had it, to third persons, are relevant facts. These constitute the occasion of the robbery and the state of things under which it happened
(b)	The question is whether A murdered B	Marks on the ground produced by a struggle at or near the place where the murder was committed are relevant facts. These are the effects of the fact in issue
(c)	The question is whether A poisoned B	The state of B's health before the symptoms ascribed to poison, and habits of B known to A which afforded an opportunity for the administration of poison, are relevant facts. The first is the state of things; the second is opportunity

Illustration (a) repays attention because it shows how far the section reaches. The fact that B displayed his money at a fair proves nothing about A. It is admitted because it explains why B was a target and why the robbery occurred as and when it did. Illustration (c) is the classic poisoning case and is the model for most modern prosecutions resting on circumstantial evidence.

4. Opportunity and Access

Of the five limbs, opportunity has generated the most case law, because it is the circumstance that most often converts a suspicion into a link in a chain. Evidence of opportunity establishes that the accused was in a position to commit the offence; it does not establish that he did.

Form of opportunity	Typical evidence	Weight
Physical access	That the accused had a key, lived in the house, or was the only person present	Strong where access was exclusive; weak where many persons had the same access
Presence at the scene	That the accused was seen at or near the place shortly before the occurrence	A link, not a conclusion; presence alone is consistent with innocence
Last seen together	That the accused and the deceased were last seen alive together	Operates only where the interval before the discovery of the body is short enough to exclude the intervention of another
Means and knowledge	That the accused knew the habits of the deceased, or had access to the substance or instrument used	Corroborative; supports the inference of design
Exclusion of others	That no other person could have entered the room or handled the article	The most compelling form, because it narrows the field to the accused

📖 Bodh Raj v. State of Jammu and Kashmir, (2002) 8 SCC 45

Held: The last-seen-together circumstance comes into play where the time gap between the point when the accused and the deceased were last seen alive and the point when the deceased is found dead is so small that the possibility of any person other than the accused being the author of the crime becomes impossible. The circumstance is a link in the chain and is not by itself conclusive.

Ratio: Opportunity narrows the field; it does not by itself establish authorship.

📖 Trimukh Maroti Kirkan v. State of Maharashtra, (2006) 10 SCC 681

Held: Where an offence is committed in secrecy inside a house, the initial burden on the prosecution is not as heavy as in a case of an open occurrence. Where the accused had exclusive opportunity and does not throw any light on facts proved to be within his special knowledge, but offers a false explanation instead, that failure becomes an additional link in the chain of circumstances.

Ratio: Exclusive opportunity, read with Section 109, produces a supplementary rule in domestic cases without displacing the prosecution's primary burden.

📖 Sharad Birdhichand Sarda v. State of Maharashtra, (1984) 4 SCC 116

Held: In a case of alleged poisoning resting on circumstantial evidence, the circumstances relied upon — including opportunity and the state of health of the deceased — must be fully established and must be consistent only with the hypothesis of guilt. They must exclude every possible hypothesis except the one to be proved, and must form a chain so complete as to leave no reasonable ground for a conclusion consistent with innocence.

Ratio: Circumstances admitted under Section 5 are subject to the five conditions before any conclusion of guilt may be drawn from them.

⚠ Opportunity in poisoning cases

In a prosecution for death by poison the courts have looked for four matters: that the deceased died of the poison alleged; that the accused had the poison in his possession; that the accused had an opportunity to administer it; and a motive. The absence of proof of possession is not always fatal where the other circumstances are compelling, but the weaker the proof of possession, the stronger the remaining circumstances must be. Illustration (c) to Section 5 is the statutory source of the opportunity limb of this enquiry.

5. State of Things

The 'state of things' limb admits evidence of the surrounding circumstances existing when the fact in issue occurred. It operates in civil disputes as much as in criminal trials.

Context	State of things admitted under Section 5
Alleged poisoning	The health of the deceased before the onset of symptoms; the symptoms themselves; the food consumed and by whom
Alleged forgery or fabrication	The financial condition of the party at the date of the alleged transaction; his need for money
Alleged accident	The condition of the vehicle, the road, the lighting and the weather
Matrimonial cruelty	The circumstances in the household; the presence of others; the pattern of conduct over the relevant period
Commercial dispute	The state of the market; the course of dealing between the parties; the condition of the goods
Alleged fire or explosion	The presence and location of inflammable material; the state of the electrical installation

6. Effect

The 'effect' limb admits the traces that a fact in issue leaves behind. It is the statutory basis for a large part of forensic and medical evidence, which reaches the record under Section 5 as an effect and is then proved as opinion under Section 39.

On the body of the victim — injuries, their nature, number and situation; the cause of death; the presence of poison or of biological traces.
On the body or clothing of the accused — injuries sustained in a struggle; stains; residue.
At the place of the occurrence — marks of a struggle; disturbance of furniture; footprints; blood distribution; damage.
On instruments and objects — marks on a weapon; damage to a vehicle; the condition of a lock or a door.
Remote effects — a subsequent illness or disability attributable to the injury; financial consequences of a breach.

The words 'immediate or otherwise' make clear that a delayed effect is as relevant as an immediate one. A death occurring weeks after an injury remains an effect of the injury for the purposes of Section 5, subject to proof of the causal link.

7. Section 5 Distinguished from Its Neighbours

	Section 4 — same transaction	Section 5 — occasion, cause and effect	Section 6 — motive, preparation and conduct
What is admitted	Facts and statements forming part of the transaction itself	Facts standing outside the transaction which explain how it arose, what it produced, or how it was possible	Facts showing motive or preparation, and the conduct of a party or of the victim
Relation to the transaction	Part of it	Outside it, but causally connected	Outside it, and may be well before or well after
Test	Spontaneity and connection with the transaction	A causal or circumstantial connection, immediate or remote	Whether the conduct influences or is influenced by a fact in issue
Statements	Admitted where spontaneous and part of the transaction	Not ordinarily admitted as such; the section deals with facts and circumstances	Excluded by Explanation 1 unless they accompany and explain acts
Typical example	The victim's cry at the moment of the attack	Marks of a struggle at the scene; the victim's state of health	Prior threats; abscondence after the offence

The three provisions frequently admit the same fact by different routes, and a party is not required to elect between them. That the deceased and the accused quarrelled an hour before the death may be part of the transaction under Section 4, the cause of the fact in issue under Section 5, and previous conduct under Section 6. What matters is that the fact falls within at least one head, since Section 3 permits evidence only of facts declared relevant.

8. Limits of Section 5

A causal connection must be shown, not asserted. The section admits facts that are the occasion, cause or effect of the fact in issue. A fact which merely preceded or followed the fact in issue, without any causal or circumstantial link, does not become relevant under Section 5.
Relevance does not establish guilt. Every circumstance admitted under Section 5 is subject to the standard applicable to circumstantial evidence. Opportunity, state of things and effect are links; they must together form a complete chain.
Remoteness goes to weight. The words 'immediate or otherwise' remove remoteness as a bar to admissibility, but a remote cause or a delayed effect carries correspondingly less weight, and the causal link must be established by evidence rather than inference.
The section admits facts, not statements. Where the material sought to be proved is what somebody said, Section 5 is not the route. The statement must be brought within Section 4, Section 6, Sections 15 to 25, or Section 26 as the case may be.
Suspicion is not proof. A collection of circumstances each consistent with innocence does not become proof by accumulation.

📖 Sarwan Singh Rattan Singh v. State of Punjab, AIR 1957 SC 637

Held: Considerations of moral conviction or grave suspicion cannot take the place of legal proof. However strong the suspicion against an accused may be, it cannot supply the want of evidence, and a conviction cannot be founded upon it.

Ratio: Circumstances admitted under Section 5 must be capable of sustaining an inference, not merely of raising a suspicion.

9. Related Topics and Provisions

Topic or provision	Connection
Facts in Issue and Relevant Facts — Section 3	The gateway provision to which Section 5 supplies content
Doctrine of Res Gestae — Section 4	The preceding head of relevancy, dealing with facts forming part of the transaction
Motive, Preparation and Conduct — Section 6	The following head, dealing with motive and with conduct before and after the transaction
Direct Evidence vs Circumstantial Evidence	The standard applied to circumstances admitted under Section 5
Section 7, BSA	Facts necessary to explain or introduce a fact in issue or relevant fact
Sections 9 and 10, BSA	Facts not otherwise relevant which become relevant, including alibi
Section 39, BSA	Expert opinion, by which most evidence of effect is proved
Section 109, BSA	Burden of proving a fact especially within the knowledge of a person