审前程序的设置主要在于对付庭审过程的突然袭击，这一诉讼环节设计基于案件在当事人之间非经充分准备不进入庭审的理论预设，这也是各国构建审前程序的共同之处。判断程序公正的重要标准是诉讼过程中的公正，即“整个诉讼过程中公正地对待作为当事人的冲突主体，保证冲突主体 Pretrial procedures are mainly set up to deal with the sudden attack of the trial process. The litigation design is based on the theoretical precondition that the case is not prepared enough to enter the trial between the parties, which is also common to all countries in establishing the pretrial procedure. An important criterion for judging procedural fairness is the impartiality in litigation, that is, "the main body of the conflict that is the party in the entire litigation process should be treated impartially and the main body of the conflict