All inconsistent statements are not sufficient to impeach the credit of the witness
It is a common practice in trial courts to make out contradictions from previous statement of a witness for confronting him during cross-examination. Merely because there is inconsistency in evidence it is not sufficient to impair the credit of the witness. No doubt Section 155 of the Evidence Act provides scope for impeaching the credit of a witness by proof of inconsistent former statement. But a reading of the Section would indicate that all inconsistent statements are not sufficient to impeach the credit of the witness. The material portion of the Section is extracted below:
155. Impeaching credit of witness.- The credit of a witness maybe impeached in the following ways by the adverse party, or, with the consent of the court, by the party who calls him.
(3) by proof of former statements inconsistent with any part of his evidence which is liable to be contradicted.
Defence may use any former statement of the witness to contradict
A former statement though seemingly inconsistent with the evidence need not necessarily be sufficient to amount to contradiction. Only such of the inconsistent statement which is liable to be contradicted would affect the credit of the witness. Section 145 of the Evidence Act also enables the cross-examiner to use any former statement of the witness, but it cautions that if it is intended to contradict the witness the cross-examiner is enjoined to comply with the formality prescribed therein. Section 162 of Code also permits the cross-examiner to use the previous statement of the witness (recorded under Section 161 of the Code) for the only limited purpose, i.e. to contradict the witness.
The former statement must have the potency to discredit the present statement
To contradict a witness, therefore, must be to discredit the particular version of the witness. Unless the former statement has the potency to discredit the present statement, even if the latter is at variance with the former to some extent it would not be helpful to contradict that witness, (vide Tahsildar Singh and anr. vs. State of U.P., AIR 1959 SC 1012).
Party
Rammi v. State of M.P : AIR 1999 SC 3544