证据是查明案件客观事实的依据。在查清案件事实的基础上,才能正确地适用刑法,惩罚犯罪分子,使无罪的人不受刑事追究,实现刑事诉讼的任务。因此,在刑事诉讼的立案,侦查、批捕、起诉、一审、二审审判等一系列诉讼环节上,主要是围绕着调查研究证据,证明案件事实进行的。如何收集,运用证据,证明案件事实,在刑事诉讼中起着决定性的作用。 Evidence is the basis for ascertaining the objective facts of the case. On the basis of ascertaining the facts of the case, can we correctly apply the criminal law, punish the criminals and keep innocent people from criminal prosecution and realize the task of criminal prosecution. Therefore, a series of lawsuits in criminal cases such as filing, investigation, arrest, prosecution, trial of first instance, trial of second instance mainly focus on the investigation and study of evidence to prove the facts of the case. How to collect and use evidence to prove the facts of the case plays a decisive role in criminal proceedings.