Law of Evidence
Subjects / Law of Evidence / Hostile Witness and Impeaching Credit
Unit 5 · Witnesses & Their Examination

Hostile Witness and Impeaching Credit

BSA S.145 (IEA S.154) allows the party calling a witness to cross-examine him with the court's permission when the witness turns hostile; S.146 to S.150 (IEA S.145 to S.153) provide the mechanisms for impeaching the credit of a witness through previous inconsistent statements, general character for untruthfulness, and proof of bias; Sat Paul v Delhi Administration (1976) established that the testimony of a hostile witness is not entirely worthless and may be relied upon to the extent corroborated.

BSA S.145 permits the party calling a witness to cross-examine his own witness with the court's permission when the witness is declared hostile (gives evidence unfavourable to the party calling him). S.146 to S.150 provide the mechanisms for impeaching credit: proving that a witness is unworthy of belief through prior inconsistent statements, evidence of bad character for veracity, proof of bias, and other methods. The Supreme Court in Sat Paul v Delhi Administration (1976) held that a hostile witness's testimony is not entirely rejected; the court may rely on those parts that are corroborated.

BSA 2023 Renumbering

BSA S.145 = IEA S.154 (cross-examination of own witness / hostile witness). BSA S.146 = IEA S.145 (cross-examination as to previous statements in writing). BSA S.147 = IEA S.146 (questions lawful in cross-examination). BSA S.148 = IEA S.145 proviso (previous inconsistent statements used to contradict). BSA S.149 = IEA S.152 (impeaching credit by evidence of bad character). BSA S.150 = IEA S.153 (exclusion of evidence to contradict answers on collateral matters). Confidence: moderate (this range has significant reordering between IEA and BSA).

S.145: Hostile Witness

The Rule

"The Court may, in its discretion, permit the person who calls a witness to put any questions to him which might be put in cross-examination by the adverse party."

What Makes a Witness "Hostile"?

Indicator Example
Contradicts his own previous statement (police statement, earlier deposition) PW states at trial: "I did not see anything," but told police: "I saw A stab B"
Resiles from his earlier position Refuses to support the prosecution despite earlier cooperation
Shows bias against the party calling him Demonstrates hostility, reluctance, or evasiveness
Does not tell the truth in the opinion of the court Court observes demeanour inconsistent with truthfulness

Procedure

  1. The party calling the witness applies to the court for permission to treat the witness as hostile.
  2. The court examines the circumstances and exercises discretion.
  3. If permission is granted, the calling party may:
    • Ask leading questions
    • Put previous inconsistent statements to the witness
    • Cross-examine on matters to impeach credibility
  4. The court is not bound to grant permission; it is discretionary.

Effect of Declaration as Hostile

Effect Explanation
Evidence not automatically discarded The testimony is not struck from the record
Court can rely on corroborated parts Portions supported by independent evidence remain usable
Cross-examination by both sides Both the calling party and the adverse party may challenge the witness
Weight is reduced The overall credibility is damaged, but not destroyed
**Sat Paul v Delhi Administration (1976)** Supreme Court of India

Facts: In a murder trial, a key prosecution witness turned hostile and denied having seen the accused at the scene, contradicting his earlier police statement. The prosecution obtained permission to cross-examine him. The trial court rejected the witness's entire testimony.

Issue: Whether the testimony of a hostile witness must be entirely discarded, or whether parts of it can be relied upon.

Held: The evidence of a hostile witness is not entirely worthless. The court may rely upon so much of the testimony as is corroborated by other reliable evidence. It is for the court to assess what portion is credible and what is not. Declaration as hostile does not mean automatic rejection of the entire testimony.

Relevance: The foundational authority on the evidentiary value of hostile witness testimony. Establishes the "corroboration test": rely on corroborated portions, reject uncorroborated portions.

Impeaching Credit (S.146 to S.150)

Methods of Impeaching Credit

Method BSA Section How it works
Previous inconsistent statement S.146, S.148 Confront the witness with a prior written or recorded statement that contradicts his present testimony
General reputation for untruthfulness S.149 Call evidence to show the witness has a bad character for veracity
Bias, interest, or corruption S.147 Show the witness has a motive to lie (relationship with party, financial interest, animosity)
Prior conviction S.149 Show the witness has been convicted of an offence affecting credibility
Contradiction by independent evidence General principle Produce independent evidence disproving what the witness said

S.146/S.148: Previous Inconsistent Statements

The procedure for using a previous statement to contradict:

Step Action
1 Draw the witness's attention to the parts of his previous statement that contradict his present testimony
2 Give the witness an opportunity to explain the inconsistency
3 If the witness denies or does not explain satisfactorily, prove the previous statement
4 The previous statement does NOT become substantive evidence (only contradicts credibility)

Important: Under the BSA (and IEA), the previous inconsistent statement is used only to impeach credit (show the witness is unreliable). It does not become positive evidence of the facts stated. The witness's oral testimony in court remains the substantive evidence.

**Khujji v State of MP (1991)** Supreme Court of India

Facts: A prosecution witness made a statement to the police implicating the accused. At trial, the witness denied the statement. The prosecution cross-examined him and proved the police statement. The trial court relied on the police statement as substantive evidence of guilt.

Issue: Whether a previous inconsistent statement proved under S.145 IEA (now S.148 BSA) becomes substantive evidence.

Held: A previous inconsistent statement proved to contradict a witness is not substantive evidence. It can only be used to impeach credibility (show the witness is unreliable). The trial court erred in treating the police statement as proof of facts. However, if other evidence corroborates the previous statement, the court may draw an inference.

Relevance: Definitively establishes that previous inconsistent statements are for impeachment only, not for positive proof. Aligns with Tahsildar Singh on the limited use of prior statements.

S.149: Bad Character for Veracity

"The credit of a witness may be impeached by the adverse party, or with the consent of the Court by the party who calls him, by proof that the witness is of such a character as to render his testimony unworthy of credit."

This is limited to general reputation for untruthfulness, not specific instances of lying (with the exception of prior convictions).

S.150: Answers on Collateral Matters Are Final

When a witness is cross-examined on a matter collateral to the issues (e.g., his general character), his answer is final: the cross-examiner cannot call independent evidence to contradict it. This prevents trials from becoming investigations into the witness's entire life history.

Exception: The cross-examiner CAN contradict the witness's answer on:

  • Previous inconsistent statements (S.148)
  • Bias, interest, or corruption
  • Prior convictions

Recall Check

  1. When may a party cross-examine his own witness?
  2. What is the evidentiary value of a hostile witness's testimony?
  3. Does a previous inconsistent statement become substantive evidence?
  4. When are answers on collateral matters final?

Key Cases

Sat Paul v Delhi Administration (1976) Sat Paul v Delhi Administration 1976
Issue: Whether hostile witness testimony must be entirely discarded.
Rule: Not automatically worthless; court may rely on corroborated portions.
Held: Corroboration test applies; reject uncorroborated, accept corroborated parts.

Khujji v State of MP (1991) Khujji v State of MP 1991
Issue: Whether a previous inconsistent statement proved under S.145 is substantive evidence.
Rule: It is for impeachment only; not substantive evidence of facts stated.
Held: Trial court erred in treating police statement as proof of guilt.

Distinctions

Basis Hostile Witness Unreliable Witness
Declaration Court formally declares hostility on application No formal declaration; court assesses in judgment
Effect on examination Calling party may cross-examine No change in examination procedure
Evidence Not discarded; corroborated portions usable Evidence assessed on merits; weighed accordingly
Example PW resiles from police statement; court permits cross-examination PW gives confused testimony but does not contradict prior statement
Basis Previous Inconsistent Statement Substantive Evidence
Purpose Impeach credibility (show witness is unreliable) Prove a fact
Status NOT evidence of the facts stated Evidence of the facts stated
Use "Your earlier statement contradicts what you now say" "This document proves X happened"
Authority Khujji v State of MP; Tahsildar Singh General rules of admissibility
Basis S.145 (Hostile witness cross-examination) S.138 (Regular cross-examination)
Who cross-examines The calling party (with court's permission) The adverse party (as of right)
Trigger Witness turns hostile Normal procedure
Permission needed Yes (court's discretion) No (right of the adverse party)
Purpose Expose the lie; save the case despite the hostile witness Test evidence; extract admissions; impeach credit

Flashcards

When may a party cross-examine his own witness (S.145)?

When the court permits, because the witness has turned hostile (contradicted his earlier statement, shown bias against the calling party, or resiled from his earlier position).

What is the *Sat Paul* principle on hostile witnesses?

The testimony of a hostile witness is not entirely worthless. The court may rely on those portions that are corroborated by other reliable evidence.

Does a previous inconsistent statement become substantive evidence?

No. It is used only to impeach credibility (show the witness is unreliable). The oral testimony in court is the substantive evidence (Khujji v State of MP).

What is the "finality of answers on collateral matters" rule?

When a witness is cross-examined on collateral matters (e.g., general character), his answer is final. The cross-examiner cannot call independent evidence to contradict it, except for bias, prior convictions, and prior inconsistent statements.

What must the cross-examiner do before proving a previous inconsistent statement?

Draw the witness's attention to the contradictory parts and give him an opportunity to explain. Only if the explanation is unsatisfactory can the statement be formally proved.

Exam Scenario

Problem: In a robbery trial, PW1 (an eyewitness) told police in his S.162 BNSS statement: "I saw A and B rob the shopkeeper at knifepoint." At trial, PW1 says: "I saw two persons rob the shopkeeper but I could not identify them in the dark." The prosecution seeks permission to declare PW1 hostile. After cross-examination, PW1 admits he identified A at the scene but maintains he could not identify B. Independent CCTV footage clearly shows A and B at the scene. Advise on the evidentiary position.

Step 1: Assess the hostility

PW1 contradicts his police statement by saying he could not identify the assailants. This is a classic ground for declaring a witness hostile. The court should grant permission to cross-examine under S.145.

Step 2: Conduct and outcome of cross-examination

After cross-examination, PW1 partially resiles:

  • Admits: He identified A at the scene.
  • Maintains: He could not identify B.

Step 3: Apply Sat Paul (corroboration test)

PW1's testimony Corroboration Relied upon?
"I saw A at the scene" (admitted in cross) CCTV footage confirms A present Yes: corroborated, reliable
"I could not identify B" CCTV footage shows B present PW1's denial is contradicted by CCTV

Step 4: Use of the previous inconsistent statement

PW1's police statement ("I saw A and B") was put to him. His denial regarding B is contradicted by:

  1. His own police statement (impeaches credit under S.148).
  2. Independent CCTV footage (substantive evidence proving B's presence).

Per Khujji, the police statement itself is not substantive evidence of B's presence. But the CCTV footage IS substantive evidence. The police statement only impeaches PW1's credibility on the B identification.

Step 5: Final evidentiary position

Fact Evidence supporting Result
A was present and participated PW1's admission + CCTV Proved
B was present and participated CCTV footage (substantive) + PW1's police statement (impeachment only) Proved by CCTV; police statement corroborates
Two traps in this problem

The police statement is NOT substantive evidence. Students often treat PW1's S.162 statement as proof that "B was there." It is not. It only shows PW1 is lying now (impeachment). The conviction of B must rest on the CCTV footage or other independent evidence, not on the police statement.

Hostile witness testimony is not worthless. PW1's admission regarding A (made during cross-examination) is part of his testimony in court and IS substantive evidence. Per Sat Paul, corroborated portions of a hostile witness's testimony are fully usable.

Conclusion. PW1 is properly declared hostile. His admission regarding A, corroborated by CCTV, is reliable substantive evidence. His denial regarding B is impeached by his police statement, but conviction of B must rest on the CCTV footage (substantive evidence), not the police statement alone. The police statement impeaches PW1's credibility but does not independently prove B's participation.

See Also