Corroboration of Evidence u/s 157 of IEA
A former statement given by a witness before any authority legally competent to investigate the case at or about the time when the fact took place, needs to be proved to corroborate any later testimony (relating to the same fact or event) given by the witness in the court. Then the former statement is admitted as corroborative evidence when it is consistent with the later testimony, under Section 157 of the Indian Evidence Act.