警察的刑讯逼供和“牢头狱霸”的欺压,是看守所“事故”频频发生的主要原因;中国特殊的看守所环境,则是造成两大因素的土壤。“有罪推定”观念导致中国对未决嫌疑犯超高的羁押率、警察权处于失控状态、加上法律赋予公安方面过长的羁押期限,是看守所一系列问题产生的根源 The torture of the police and the bullying of “prison inmates” are the main causes of the frequent occurrence of detention centers and “accidents”. The special detention center environment in China is the soil that causes the two major factors. “The concept of” guilty presumption "has led to the extremely high custodial rate of suspects in China and the outbreak of police power. In addition, the long detention period imposed by law on public security is the root cause of a series of problems in the detention center