Abstract: The disengagement from the relationship of joint offence can take place at every stage of the common crime. It needn't be suspended at will or get approval from other offenders, but should let them know and eliminate the influence to their acts and results effectively in order to release from the relationship of joint offence substantively. The seceder constitutes attempt in principle, but there are some important exceptions, including indirect intention as well as occasions such as continuous offences that are suitable for segmentation evaluation, in which case the seceder can constitute accomplished offender or non-offender.