第20届东北内蒙古四省区刑侦协作会议于2000年9月4日在黑龙江省哈尔滨市召开。这届协作会议,在《东北内蒙古四省区刑侦协作制度》的基础上,根据协作工作的实际,按照有关法律法规,制定了《东北内蒙古四省区刑侦协作投诉制度》,按照有关法律法使协作制度更加规范化、制度化。这也是全国各刑侦协作区中首家推出的协作投诉制度。 The 20 th Northeast Inner Mongolia Criminal Investigation Symposium was held on September 4, 2000 in Harbin, Heilongjiang Province. On the basis of the “Criminal Investigation System of Four Provinces and Regions in Northeast of Inner Mongolia”, this session of the Symposium formulated the "Complaint System of Criminal Investigation Cooperation in Four Provinces and the Northeast of Inner Mongolia in Northeast China in accordance with the relevant laws and regulations, according to the actual conditions of the cooperation. According to the relevant laws and regulations Coordination system more standardized and institutionalized. This is also the first collaborative complaint system in all criminal investigation cooperation areas across the country.