Section 156 in Indian Evidence Act 1872
Title: Questions tending to corroborate evidence of relevant fact admissible
When a witness whom it is intended to corroborate gives evidence of any relevant fact, he may be questioned as to any other circumstances which he observed at or near to the time or place at which such relevant fact occurred, if the Court is of opinion that such circumstances, if proved, would corroborate the testimony of the witness as to the relevant fact which he testifies.
A, an accomplice, gives an account of a robbery in which he took part. He describes various incidents unconnected with the robbery which occurred on his way to and from the place where it was committed.
Independent evidence of these facts may be given in order to corroborate his evidence as to the robbery itself.
Title: Former statements of witness may be proved to corroborate later testimony as to same fact
In order to corroborate the testimony of a witness, any former statement made by such witness relating to the same fact at or about the time when the fact took place, or before any authority legally competent to investigate the fact, may be proved.
Title: What matters may be proved in connection with proved statement relevant under section 32 or 33
Whenever any statement, relevant under section 32 or 33, is proved, all matters may be proved either in order to contradict or to corroborate it, or in order to impeach or confirm the credit of the person by whom it was made, which might have been proved if that person had been called as a witness and had denied upon cross-examination the truth of the matter suggested.
Title: Refreshing memory
A witness may, while under examination, refresh his memory by referring to any writing made by himself at the time of the transaction concerning which he is questioned, or so soon afterwards that the Court considers it likely that the transaction was at that time fresh in his memory.
The witness may also refer to any such writing made by any other person, and read by the witness within the time aforesaid, if when he read it he knew it to be correct.
When witness may use copy of document to refresh memory. -- Whenever a witness may refresh his memory by reference to any document, he may, with the permission of the Court, refer to a copy of such document:
Provided the Court be satisfied that there is sufficient reason for the non-production of the original. An expert may refresh his memory by reference to professional treatises.
Title: Testimony to facts stated in document mentioned in section159
A witness may also testify to facts mentioned in any such document as is mentioned in section 159, although he has no specific recollection of the facts themselves, if he is sure that the facts were correctly recorded in the document.
A book-keeper may testify to facts recorded by him in books regularly kept in the course of business, if he knows that the books were correctly kept, although he has forgotten the particular transactions entered.