| Interrogation is a very important component of the criminal procedures. The interrogation results will not only affect the fate of the criminal suspects in judicial procedures, but also it will affect the progress of the process, the speed and quality to ensure that court proceedings are carried out smoothly. Therefore, the exploration of crime suspects' psychological change and various responses, seizing the criminal suspects' psychology confessed to the act in order to get the psychological characteristics, diagnosis means and diagnostic methods is very important. This helps to break through the psychological defense line of questioning to seize the core and improve the quality of interrogation. Under normal circumstances, criminal suspects act as normal members of society and avoid the bad instinct or psychological motive in the implementation .They will have a rational selection process, the rational choice confined by the social rules of conduct (such as the legal, ethical behavior rules) and social values; in questioning in the investigation, the door of the criminal suspects can choose for or leave for refusing to evade legal punishment or avoid other types of losses, but suspect that such losses can not escape punishment or circumstances, suspects will strive to reduce or mitigate the inevitable punishment or losses, including factual statements criminal prosecution or others; Interrogation of those questioned in the investigation to take measures to influence and control of criminal suspects psychological help its factual statement. Accelerating the process of the legal system on the investigative work of the criminal investigation requested rising. CPL Communications on time and lawyers involved in the investigation in advance, and "respecting and guaranteeing human rights" were included in the amendment to the Constitution and that the investigation work strictly interrogation procedures, the protection of human rights, norms of further highlighted by the request, which also has to rely on the investigating authorities from storming hard, fatigue, and other traditional warfare trial mode case lost the legal basis for survival. Therefore, within the framework of the law, in accordance with the law of the investigation, characteristics, improve their investigation questioned the psychological strategies in the criminal investigation activities in order to win - to seek detection, investigation work is a new way out, the right of police officers investigating the level of work and explore new work by questioning post-mortem to the urgent request. During questioning in the investigation organs (interrogation) how to seize criminal suspects psychological and take targeted measures to improve the efficiency of the investigation questioned the suspects as soon as possible to obtain statements or ferreting out crime, the facts of the case to identify the truth, neither indulgence crime, but also to better protect human rights ; the investigation concerns at the same time questioning the occupational psychological characteristics, should have the psychological quality and the type of investigation and psychological obstacles to adjust, whether in theory or in practice are of important significances. I first presented several views and major points of doctrine in the psychological study of investigation and interrogation in the world and then I briefly introduced the relevant researches. In this paper, systematic research, empirical research method, psychological study, sociological theory, other related disciplines to criminal suspects in the interrogation stage and several common psychologies are summarized. Finally there's the analysis of the problems in interrogation, the corresponding responses and my points of view. |