The work is thematically divided into two parts that are not strictly separated. The link between these is the institution of release on parole. The first part deals with the institution of disqualification of a judge from the panel which decides on the petition for release on parole. It was noted that this issue does not occupy the attention of science, nor practice. It is pointed why this neglect is unjustified. Specifically analyzed is the possibility of participation of judge in deciding on release on parole if he has already acted (had some role) in the same case before. The consequences that can be brought by insufficient attention on this issue are as follows: 1) substantive violation of the provisions of criminal procedure, and 2) the conduct of disciplinary proceedings against a judge who should have been disqualified. The second part examines certain provisions of legal acts regulating the matter of conditional release. The enormous significance of parole is that the convict has the possibility to get out after 2/3 of served prison sentence. The scale of these opportunity is clearly visible on the long-term prison sentences. Despite the general tendency towards reducing the prison population, it appears that parole does not and can not achieve the role which it intends. The procedure for release on parole in the case law often acts as a 'sideshow' and the CPC opens the door to discussions about the quality of certain provisions of the procedure for release on parole.