侦查讯问与科学领域的认识活动一样 ,具有信息特性。信息的实质是消除不确定性 ,而讯问的实质也是消除不确定性 ,即发现事实真相。侦查人员应当在信息论的指导下 ,运用信息技术成果 ,研究侦查讯问中已经出现和即将出现的问题 ,培养信息意识 ,注意讯问中信息的传递和反馈 ,达到促使犯罪嫌疑人如实供述的目的。 Investigative interrogation is as informative as scientific awareness. The essence of the message is to eliminate the uncertainty, and the essence of the interrogation is to eliminate the uncertainty, that is, discover the truth. Under the guidance of information theory, investigators should use information technology achievements to study the problems that have emerged and are about to appear in the investigation and interrogation, cultivate the awareness of information and pay attention to the transmission and feedback of information in interrogation so as to promote the truthfulness of the criminal suspects.