“9·11事件”后美国刑事司法政策发生了一些变化,其核心在于寻求个人自由和公共安全价值理念之间的平衡。把美国刑事司法政策调整放入其发展轨迹中分析,可以发现,一个国家刑事政策的调整、司法制度的构建总是立足于该国具体的社会现实。由此给我们的启示是,当前我国的司法改革应立足于社会现实对司法制度的需求。 After the “September 11 Incident”, some changes have taken place in the criminal justice policy in the United States. The core of the criminal justice policy lies in finding a balance between personal liberty and the concept of public security values. The analysis of the adjustment of criminal justice policy in the United States can be found out that the adjustment of a country’s criminal policy and the construction of the judicial system are always based on the specific social reality in the country. The enlightenment to us is that the current judicial reform in our country should be based on the social reality of the needs of the judicial system.