Owing to the complexity of joint offenses,it becomes a difficult problem for criminal legislators as well as for the academic circles to identify the respective criminal liability of joint offenders.

The classification of co-perpetrator is an issue which is well worth being discussed in the theory of joint criminal.

According to some related regulations in our present criminal law,the discontinuance of crime of partial accomplice means that in the process of joint offense,the partial accomplice will voluntarily give up their criminal acts,and meanwhile,they will also effectively prevent the occurrence of criminal results.