侦查讯问中供述率的比较研究:误区、方法与技术

Comparative Study on the Confession Rate:Misdirection,Methods and Technologies

许多学者认为当前我国警察取证过程中仍过度依赖犯罪嫌疑人供述,其重要例证是我国犯罪嫌疑人在侦查阶段的有罪供述率远高于其他国家。将我国学者有关侦查讯问犯罪嫌疑人供述率的实证成果与英美国家相关成果进行比较研究后发现,我国现有研究在实证方法的具体运用上尚存在许多方向性和技术性误区。供述率统计数据来源过于单一、"供述率"或"认罪率"概念的操作化定义不明、"初次讯问"界定不准、分析单位选择不当等,直接影响了侦查讯问供述率实证研究成果的信度和效度。

It is believed that the current criminal investigation still excessively depends on the suspect＇s confession; the important example is that the confession rate of criminal suspects in the investigation stage in our country is far higher than other countries. However, in comparison with empirical research on the suspect＇s confession rate of other countries, there are some misdirection and technical errors in application of empirical methods in our country, for instance, inadequate sample selection and data source, the ambiguous operational definitions on ＇ Confession Rate＇ and ＇ First Interrogation＇, and inapposite unit of analysis. These misdirection and technical errors directly affect the reliability and validity of interrogation confession rate of our empirical research results.