Unit V of the Law of Evidence governs witness competency, privileged communications, witness examination stages, leading questions, hostile witnesses, and corroboration rules under the Indian Evidence Act. Understanding these statutory sections is fundamental for trial advocacy, civil litigation, and criminal procedure.
Competence to Testify (Sections 118 to 120)
The general principle of Indian evidentiary law is that all persons are competent to give testimony unless prevented by intellectual incapacity, extreme youth, disease of body or mind, or other cause that prevents understanding questions or offering rational answers.
- Section 118 (Who May Testify): All individuals are competent witnesses unless the court determines they are unable to comprehend questions put to them or give rational answers due to tender years, extreme old age, physical disease, or mental illness. A lunatic is not incompetent unless prevented by their lunacy from understanding questions.
- Section 119 (Witness Unable to Speak): A witness who cannot speak may give evidence through writing or signs made in open court. Evidence provided in this manner is deemed oral evidence.
- Section 120 (Parties to Civil Suit and Spouses): In civil proceedings, parties to the suit and their spouses are competent witnesses. In criminal proceedings against any person, the spouse of that person is a competent witness.
Privileged Communications (Sections 121 to 129)
Privileged communications protect specific confidential relationships and public interests from compulsory disclosure in judicial proceedings.
| Section | Category of Privilege | Scope of Protection |
|---|---|---|
| Section 121 | Judges and Magistrates | Protection concerning their conduct in court as judicial officers, except on special order of a superior court. |
| Section 122 | Spousal Communication | Communications made during marriage between husband and wife are privileged and cannot be disclosed without consent, except in suits between spouses. |
| Section 123-124 | State Affairs and Official Communications | Unpublished official records relating to affairs of state and communications made to public officers in official confidence. |
| Section 126-129 | Professional Legal Privilege | Confidential communications between advocates and clients made in the course of professional employment, excluding communications in furtherance of illegal purposes. |
Order and Stages of Examination (Sections 135 to 138)
Witness examination follows a strict statutory sequence designed to elicit truth and test credibility under judicial supervision:
- Examination-in-Chief (Section 137): The examination of a witness by the party who calls them to establish relevant facts supporting their case.
- Cross-Examination (Section 137): The examination of a witness by the adverse party to test accuracy, uncover biases, discredit veracity, and elicit admissions.
- Re-Examination (Section 137): The examination of the witness, subsequent to cross-examination, by the party who called them, directed to explaining matters referred to in cross-examination.
Section 138 establishes the order of examination: witness must first be examined-in-chief, then cross-examined if the adverse party desires, and then re-examined if the calling party desires. Questions in re-examination must remain confined to explaining matters raised in cross-examination unless permitted by the court.
Leading Questions and Hostile Witnesses
Section 141 defines a leading question as any question that suggests the answer the person putting it wishes or expects to receive. Under Section 142, leading questions cannot be asked in examination-in-chief or re-examination without permission of the court, except regarding introductory or undisputed matters. Section 143 permits leading questions during cross-examination.
Section 154 grants discretion to the court to permit the party calling a witness to put questions that might be put in cross-examination by the adverse party. When a witness turns hostile by retracting previous statements or showing hostility to the calling party, this provision enables the examiner to confront the witness with prior inconsistent statements under Section 145.
Approver Testimony and Corroboration (Sections 133 and 156-157)
Section 133 provides that an accomplice is a competent witness against an accused person, and a conviction based on uncorroborated accomplice testimony is not illegal. However, this provision is read alongside Section 114 Illustration (b), which establishes a judicial presumption that an accomplice is unworthy of credit unless corroborated in material particulars.
Sections 156 and 157 permit the introduction of corroborative evidence to support the credibility of witness testimony, including former statements made around the time the fact occurred. These principles form a core component of curriculum requirements for law examinations and specialized legal studies and CS Executive notes.
Improper Admission and Rejection of Evidence (Section 167)
Section 167 of the Indian Evidence Act establishes that the improper admission or rejection of evidence shall not be ground of itself for a new trial or reversal of any decision if there was sufficient evidence to justify the decision independently, or if the rejected evidence would not have varied the outcome. This statutory rule guides appreciation of witness evidence by superior courts during appellate adjudication.