Investigation And Interrogation From The Perspective Of Game Theory

Game theory, also known as game theory, is to study the decision-making to makedecisions to maximize their own utility theory in the interdependent time.many theory hasbeen widely applied to the field of law, and the interrogation is game contest between organsof investigation and criminal suspects, the interrogation strategy with game theory.Therefore,the game theory and the investigation and interrogation together, so that we can interpret theinterrogation system from a new perspective, to provide theoretical guidance for theinterrogation investigators legitimate effectively in the interrogation practice.This paper isdivided into three parts：The first part: an overview of the game and the game theoryFirstly, there are many similar game phenomenon in our reality life were introduced, thedefinition of game theory are discussed; Second generation and development stages of gametheory is described in detail, positive effects on game theory on investigation andinterrogation play is briefly introduced; Finally, the classic classification of game theory isexplained.The second part: application of game theory in investigation and interrogation.The first game in investigation and interrogation need eight elements have the: gameplayers, game strategy, game behavior, revenue, game information, game order, results, andgives a detailed interpretation of equilibrium, four of the most important elements of the gametheory:participants, strategy, revenue, equilibrium. Through the analysis of these factors ofgame theory, in the course of interrogation investigators suspect interrogation strategy usebetween balance plays a very important role. Secondly, on three theoretical foundations ofgame theory in investigation and interrogation: has carried on the detailed elaboration of legaltheory, logic theory, psychology theory, that investigation and interrogation is not only aconfrontation theory, its use in the interrogation practice also has its deep academicfoundation; Finally introduced the famous "the prisoner’s dilemma game theory", carefulanalysis of the "prisoner’s dilemma" three basic assumptions, and defects on the threeassumptions of investigation and interrogation practice of some correction; Finally, thespecific use of "prisoner’s dilemma" in the interrogation tactics are introduced. The third part: application of game theory to the limitations and Countermeasures ofinterrogationFirstly this paper from five aspects of the game theory in the criminal investigation aredescribed in the: the unbalance of rights, the criminal suspect of irrational factors, incentivesystem defects, the information asymmetry, the interrogation impasse led to the failure ofgame, and the investigators in the interrogation practice from game theory limitations andputs forward some opinions and suggestions. Secondly, from the three aspects of:investigators opinion investigation and interrogation of criminal law means, fuzzy,investigation and interrogation system defects of some problems in our current criminalinvestigation and interrogation system are analyzed in detail, and put forward somereasonable suggestions on how to perfect the system of investigative interrogationproblems.expect certain guidance function to interrogation practice.