The first part provides an overview of the conditions of establishment of quasi-surrendered, surrendered to the main body involved in quasi-crime to define and understand the conditions statement. 该部分首先概述了准自首的成立条件,涉及准自首主体的界定和罪行供述条件的理解。然后,对准自首成立条件的具体把握与认定作出了分析。