补充侦查是刑事诉讼中的一项制度,它是在原有侦查基础上继续进行侦查的活动,是检察机关充分行使诉讼监督权、公诉权的有效途径和必要保障,对于准确、及时查明案件事实,惩治犯罪及保障案件当事人的合法权益,实现刑事诉讼打击犯罪及保障人权的价值,具有十分重要的意义。鉴于此,有必要对现有的补充侦查制度及运行机制进行研究,以期充分发挥补充侦查的作用,最大限度地实现其立法本意。一、补充侦查的概念和特点补充侦查在刑事诉讼法中并没有明确具体的概念,根据刑事诉讼法 The supplementary investigation is a system in criminal procedure. It is an activity of continuing investigation on the basis of the original investigation. It is also an effective way and necessary guarantee for the procuratorial organs to fully exercise their supervisory authority and prosecutorial power. It is very important for investigating the facts of the case accurately and promptly It is of great significance to punish crimes and safeguard the lawful rights and interests of the parties involved in the case and to realize the value of criminal procedures in cracking down crime and safeguarding human rights. In view of this, it is necessary to study the existing supplementary investigation system and operational mechanism with a view to giving full play to the role of supplementary investigation to maximize its legislative intent. First, the concept and characteristics of supplementary investigation Supplementary investigation There is no clear and specific concept in the Criminal Procedure Law, according to the Criminal Procedure Law