The Application Of Plausible Reasoning In The Practice Of Investigation

Investigation personnel how in the limited time to obtain evidence, criminal suspectsarrested in the practice of investigation, generally rely on professional knowledge andknowledge of logic combination to achieve the purpose of. This process is widely used in thelogic knowledge to traditional logic mainly. With the investigation and development of logic,the majority of scholars in different extent to introduce some modern logic knowledge, but asa result of its theory is more cumbersome, in the practice of criminal investigation is notpractical, that now is dominant to traditional logic. In view of this, this paper aims to plausiblereasoning theory analysis and research, hoping to promote investigation logic theory basis forfurther development, at the same time as the investigative practice to provide some practicalreasoning method.George Polya thinks, plausible reasoning is a conjecture is provided based on theprobabilistic inference model, which includes" observation, induction, analogy, experimental,Lenovo, correction, forecast, control method. In the detection logic, introduction of plausiblereasoning theory has great theoretical and practical significance. In theory, proposed by Polyaplausible reasoning for mathematics, after the domestic scholars also cited only in the field ofmathematics to wander around, and with the combination of very little investigation practice.Therefore, interdisciplinary research is not only of theoretical significance, and can show thevalue of innovation. In reality, the criminal cases arising from the diversity and uncertainty,which makes many of the facts of the case is often the only plausible cognitive basis, withoutthe need to confirm. Therefore, in the practice of investigation into plausible reasoning theory,not only helps to obtain evidence, arresting criminal suspects, and to enhance the investigatorslogic level has important practical significance.Although the reasoning did not obtain and deductive logic attach equal importance tothe extent of investigation in criminal investigation practice, but each link is ubiquitous use ofplausible reasoning. Plausible reasoning and the traditional logic difference, lies in it can becombined with a variety of background knowledge to use, this is the" fair" value. Plausiblereasoning is not paid enough attention to by scholars for the reason of no more than twoaspects: one is the reasonable inference theory in the practice of investigation into later, hasnot yet been more scholars understanding; two is the reasoning conclusion is probable, though with great creativity, but its study is far greater than the deductive reasoning. In this paper,through the following four part introduces the reasoning in criminal investigation practice,hope the investigation theory and practice.The first part: plausible reasoning from logic origin: Genealogy angle check.Introduction to Aristotle, Hagel, Peirce on the logic classification, and then export the Polyaclassification, understanding of the close connection between these classification.The second part: the basic theory of plausible reasoning. This paper mainly summarizedthe plausible reasoning and deductive reasoning, some basic knowledge, and then theplausible inference and traditional logic is more important in the form of reasoning werecompared, and also introduces its relationship with experience and intuition, the hope of amore clear understanding of plausible reasoning.The third part: the practice of plausible reasoning pattern forming process. Introducesthe use patterns of plausible inference process, but also on the plausible reasoning model isdescribed, and put forward a reasonable inference preferred process the method.The fourth part: patterns of plausible inference in criminal investigation practice inspecific application. Mainly to explain the patterns of plausible inference in criminal cases inflexibility, in the instance of knowledge reasoning each model, it also introduces the reasoningin investigation practice significance.