当前,血迹搜索犬在公安机关侦破刑事案件的过程中发挥着越来越重要的作用,训导员充分利用犬对人体血液的特殊气味,本能地产生强烈的探求和猎取反射的反应,指挥警犬在刑事案件现场通过搜索,快速地找到发现与犯罪嫌疑人、受害人有关的血迹物证、作案工具,从而为案件的侦破提供有价值的线索。它的主要作用:一是搜索现场人体血迹、尸体(块),为案件侦查提供相关的DNA检材;二是查找作案工具、车辆等与案件有关 At present, the bloodstain search dogs play an increasingly important role in the criminal cases detection by the public security organs. The trainers make full use of the special smell of dogs’ blood on the human body and instinctively produce intense exploration and hunting reaction. Through the search of criminal cases, the scene of crime cases can be quickly found and found to be a valuable clue for the detection of the cases by discovering the blood evidence and crime tools related to suspects and victims. Its main role: First, search for human blood stains at the scene, the body (block), for the detection of the case to provide relevant DNA samples; the second is to find tools and vehicles related to the case