The Supreme Court recently observed that a witness will not stand totally discredited merely because the testimony given during the trial contradicted the earlier statement given to the police.
“No doubt statement given before police during investigation under Section 161 are “previous statements” under Section 145 of the Evidence Act and therefore can be used to cross examine a witness. But this is only for a limited purpose, to “contradict” such a witness. Even if the defence is successful in contradicting a witness, it would not always mean that the contradiction in her two statements would result in totally discrediting this witness