证人证言是刑事诉讼证据之一,而且是运用较为广泛的证据。要把证人的证言作为定案的依据,必须要求证人出庭,经过控、辩双方的交叉询问,这是程序正义的重要保证,是杜绝冤、假、错案的有效方法之一。 Witness testimony is one of the evidence of criminal proceedings, but also the use of a more extensive evidence. The testimony of witnesses must be taken as the basis for the verdict. Witness must be required to appear in court and cross-examination by both the prosecution and the defense. This is an important guarantee for procedural justice and an effective way to eliminate injustice, falsification and miscarriage of justice.