公安机关侦查人员出庭作证的身份界定,目前存在证人身份、司法辅助人员身份及在法庭上提供的不同内容区别对待三种观点。从侦查人员出庭作证制度的目的效果来看,第三种观点基本符合事实,又能很大程度上照顾到新《刑事诉讼法》的规定,对于我国执法规范化建设、推到公安深化改革意义重大。 The definition of the identity of investigators of public security organs in court to testify in court currently exists as witnesses, the identity of judicial support personnel and the different contents provided in the court to treat the three views. Judging from the effect of the investigators’ testimony system, the third view is basically in line with the facts and can largely take into account the provisions of the new Code of Criminal Procedure, which is of great significance to the standardization of law enforcement in our country and the deepening of public security reforms .