The foundational backbone of criminal and civil trial advocacy rests upon a strict binary framework: Logical Relevancy vs. Legal Admissibility. Under Section 3 of the Bharatiya Sakshya Adhiniyam (BSA), 2023 (old Section 5 IEA), evidence may be given in any suit or proceeding of the existence or non-existence of every fact in issue, and of such other facts as are hereinafter declared to be relevant, and of no others.

1. Distinction between Relevancy and Admissibility

Understanding the separation between these two concepts is vital for handling objections at the trial stage:

Parameters of Distinction	Relevancy (Logical / Legal)	Admissibility (The Legal Filter)
Juristic Nature	It is the genus. It is determined based on logic, common sense, and the causal connection between facts.	It is the species. It is a strict rule of law that dictates how and whether a relevant fact can enter the record.
Statutory Range	Outlined broadly across the structural windows of Sections 4 to 50 of the BSA, 2023.	Governed by restrictive exclusionary rules found across the code (e.g., the police confession bar).
The Factor of Notice	A fact may be highly logically relevant (e.g., a communication between a husband and wife), but completely inadmissible due to public policy privileges (Section 124 BSA).	A document may be legally admissible, but its weight or relevance can be completely destroyed by a successful cross-examination.

II. The Core Principles of Relevance (Sections 4 to 12 BSA)

Chapter II of the BSA establishes the narrow statutory windows through which an evidentiary fact (factum probans) can be lawfully proved to establish a fact in issue (factum probandum):

1. Relevancy of Facts Forming Part of the Same Transaction (Res Gestae) [Section 4 BSA]

(Corresponding to Section 6 of the old Indian Evidence Act)

Under Section 4 of the BSA, 2023, facts which, though not in issue, are so connected with a fact in issue as to form part of the same transaction, are relevant, whether they occurred at the same time and place or at different times and places.

The Doctrine of Res Gestae:

The phrase "Res Gestae" is a Latin term signifying "things done" or "acts executed". The rule is an exception to the strict exclusion of Hearsay Evidence. To prevent fabrication or reflective design, any statement made or act done during the currency of the main event must be spontaneous, concurrent, and directly attached to the transaction. [ Under the Rule of Res Gestae ]

Statutory Operational Illustrations:

a. Valid Concurrence: A is accused of the murder of B by beating him. Whatever was said or done by A or B or the bystanders at the beating, or so shortly before or after it as to form part of the same transaction, is a relevant fact.

b. The Flaw of Delay: If a victim is assaulted, and hours later tells a friend the name of the attacker, that statement is inadmissible under Section 4. It loses its spontaneity, constitutes mere hearsay, and can only be evaluated under Section 26 BSA as a dying declaration if the victim passes away.

2. Occasion, Cause, or Effect of Facts in Issue [Section 5 BSA]

(Corresponding to Section 7 of the old Indian Evidence Act)

Under Section 5 of the BSA, 2023, facts which are the occasion, cause, or effect, immediate or otherwise, of relevant facts or facts in issue, or which constitute the opportunity for their occurrence, or the state of things under which they happened, are relevant.

The Four Statutory Axes:

a. Occasion: The specific setting or pre-existing state. (e.g., the fact that the victim was known to be carrying a large sum of cash to a local fair, creating the occasion for robbery).

b. Cause: The direct force that triggered the act. (e.g., the presence of distinct footprints or wheel-tracks at the scene to prove the vehicle that caused an accident).

c. Effect: The physical or digital residue left behind. (e.g., structural symptoms of poisoning found in a victim's stomach, or blood-stains on the floor).

d. Opportunity: Having the specific time and access to execute the deed. (e.g., proving that the accused was alone in a locked room with the deceased at the calculated time of death).

3. Motive, Preparation, and Previous or Subsequent Conduct [Section 6 BSA]

(Corresponding to Section 8 of the old Indian Evidence Act)

Section 6 provides three vital components for analyzing criminal behavior during trials:

a. Motive [Section 6(1)]

A motive is the internal psychological moving power or emotion that drives an individual to form a criminal intent and execute an offense. While the prosecution is not under a strict obligation to establish a motive to secure a conviction, proving a clear motive adds massive weight to cases resting heavily on circumstantial evidence.

Illustration: Proving that A was deeply in debt, or held an ancient property dispute with $B$, is highly relevant to establish a motive for the murder of B

b. Preparation [Section 6(2)]

Preparation consists of arranging, devising, or gathering the specific means, tools, or opportunities necessary to execute a crime. It is an open, overt act that occurs after the initial intention but before an attempt.

Illustration: The fact that the accused purchased a specific brand of arsenic poison, or a country-made pistol, a day prior to the murder is highly relevant as active preparation.

c. Previous or Subsequent Conduct [Section 6(3)]

The conduct of any party or their agent, either prior to or immediately following the offense, is relevant if it directly influences or is influenced by a fact in issue.

i. Absconding and Behavioral Shifts: If an accused flees the locality immediately after a crime occurs, drops their active mobile phone SIM card, or attempts to destroy blood-stained clothing, these actions constitute subsequent conduct that is highly relevant under Section 6.

ii. The Statement Condition: Statements accompanying or explaining an act are relevant as conduct. However, a mere naked statement without an accompanying act does not qualify as conduct under this section, though it may be admissible as an admission.

4. Facts Necessary to Explain or Introduce Relevant Facts [Section 7 BSA]

(Corresponding to Section 9 of the old Indian Evidence Act)

Under Section 7 of the BSA, 2023, facts are relevant if they are necessary:

a. To introduce or explain a fact in issue or relevant fact.

b. To support or rebut a logical inference.

c. To establish the identity of any person or thing whose identity is relevant.

d. To fix the time or place at which any fact happened.

Test Identification Parade (TIP):

The statutory authority to conduct a Test Identification Parade (TIP) is derived directly from Section 7. When a witness claims to have seen an unknown attacker during a crime, a TIP is conducted during the investigation under the strict supervision of a Magistrate to verify if the witness can pick out the accused from a line of similar-looking individuals.

i. Evidentiary Value: A TIP is not substantive evidence. It is a corroborative tool used to confirm the reliability of the witness's subsequent identification of the accused in open court during the trial.

5. Things Said or Done by Conspirator in Reference to Common Design [Section 8 BSA]

(Corresponding to Section 10 of the old Indian Evidence Act)

Under Section 8 of the BSA, 2023, where there is reasonable ground to believe that two or more persons have conspired together to commit an offence or an actionable wrong, anything said, done, or written by any one of such persons in reference to their common intention, after the time when such intention was first entertained by any one of them, is a relevant fact as against each of the persons believed to be so conspiring, as well for the purpose of proving the existence of the conspiracy as for the purpose of showing that any such person was a party to it.

a. The Agent-Principal Relationship in Conspiracy:

Section 8 incorporates a wide rule of mutual agency. Once a prima facie conspiracy is shown to exist, the act of one conspirator binds all the others, even if they were completely unaware of the specific details or were absent when that particular act was executed.

b. The Modern Standard: Under the Bharatiya Nyaya Sanhita (BNS), 2023, criminal conspiracy is penalized under Section 61 BNS. Section 8 BSA serves as the primary evidentiary machinery to link digital chats, funds transfers, and logs generated by different members of a criminal syndicate.

6. The Shield of Alibi [Section 11 BSA]

(Corresponding to Section 11 of the old Indian Evidence Act)

a. Under Section 11 of the BSA, 2023, facts not otherwise relevant are relevant:

i. If they are inconsistent with any fact in issue or relevant fact.

ii. If by themselves or in connection with other facts they make the existence or non-existence of any fact in issue or relevant fact highly probable or improbable.

b. The Plea of Alibi:

The term "Alibi" is a Latin expression signifying "elsewhere". It is a defensive plea raised by an accused asserting that they were physically present at a completely different geographical location at the exact time the offense was executed, making it physically impossible for them to have participated in the crime.

c. The Strict Burden of Proof:

The plea of alibi is a double-edged sword. Under Section 105 of the BSA (old Sec. 103), the burden of proving a plea of alibi rests strictly and heavily upon the accused who asserts it. The accused must discharge this burden by adducing clear evidence (e.g., train tickets, biometric logs, CCTV footage, or digital location data) to show complete physical impossibility of presence at the crime scene. If the plea fails, it can operate as an adverse circumstance against the defense.

III. State of Mind, Body, or Bodily Feeling (Sections 12 & 13 BSA)

(Corresponding to Sections 14 & 15 of the old Indian Evidence Act)

1. Relevance of Mental and Physical States [Section 12 BSA]

Under Section 12 of the BSA, 2023, facts showing the existence of any state of mind—such as intention, knowledge, good faith, negligence, rashness, ill-will, or good-will towards any particular person, or showing the existence of any state of body or bodily feeling—are relevant, when the existence of any such state of mind or body or bodily feeling is in issue or relevant.

a. The Proviso Test:

The Explanation to Section 12 establishes a vital rule: to be relevant under this section, the state of mind must not be a general mental disposition, but must exist in reference to the specific particular person or matter involved in the trial.

Example: If A is tried for the murder of B by shooting him, the fact that A was generally a reckless person who fired guns indiscriminately is irrelevant. However, the fact that A had previously shot at B, or explicitly threatened B, is highly relevant under Section 12 to prove his specific mental state towards B.

2. Accidental vs. Intentional Acts [Section 13 BSA]

Under Section 13 of the BSA, 2023, when there is a question of whether an act was accidental or intentional, or done with a particular knowledge or intention, the fact that the act formed part of a series of similar occurrences, in each of which the person doing the act was concerned, is relevant.

Illustration (The System of Fraud): A is accused of intentionally burning down his house to claim insurance money. The fact that A had previously lived in three separate houses, each of which caught fire and resulted in A receiving insurance payouts, is highly relevant under Section 13 to prove a systematic, intentional design and rule out an accident.

IV. Quick Reference Summary Matrix: Sections 4 to 13 BSA

To assist in quick trial cross-referencing and formulating trial arguments, the table below structures the core relevance provisions of the BSA:

Section (BSA, 2023)	Core Legal Concept	Standard Evidentiary Tool / Example	Proper Trial Application
Section 4	Res Gestae	Spontaneous statements made at the scene during an assault.	Exception to hearsay; requires immediate temporal concurrence.
Section 5	Cause, Occasion, & Effect	Footprints at the scene; sudden isolation providing opportunity.	Establishes the physical and temporal setting of the offense.
Section 6	Motive, Preparation, & Conduct	Purchasing poison; absconding immediately after the crime.	Strengthens circumstantial cases; analyzes physical reactions.
Section 7	Explanatory & Introductory	Test Identification Parade (TIP) results.	Corroborative tool to establish identity, time, or place.
Section 8	Conspiratorial Design	Shared digital logs, group chats, or coordinate money trails.	Implements mutual agency; binds all co-conspirators.
Section 11	Plea of Alibi	Digital location tracking showing presence in another city.	Rest upon inconsistency; burden shifts to the defense.
Section 12	Specific State of Mind	Previous targeted assaults or specialized threats to the victim.	Proves intentional state of mind against a specific person.
Section 13	Series of Occurrences	Multiple suspicious insurance claims from recurring house fires.	Rules out accidents; establishes a systematic fraudulent design.

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