We analyze the legislation and practice of public control implementation of the work of institutions and authorities that conduct sentences. We consider the basic principles and directions of the Public Monitoring Commissions (PMC) activities, we list the problem aspects of the administrations interaction of corrections facilities (CF), mass media and public members. In addition, we study the conceptual foundations of the penal system (PS), measures of legal, organizational, informational, social and economic nature aimed at transparency and improving the conditions of serving a sentence. We ascertain that in practice there are cases in which misunderstanding and ignorance of the criminal, criminal procedural and correctional law legis-lation by members of the PMC, their inability to give an objective legal as-sessment of the behavior and actions of a particular subject (remand prisoner, convicted) and officials of administrations of the Federal Penitentiary Service (FPS of Russia) often creates prerequisites for destabilizing the work of institutions of forced detention (FD) and violating the order of serving sentences. In addition, we note that there are other unresolved tasks with the procedure for protecting the rights of convicted prisoners. Thus, we points out that to date, the issues of modernization and optimization of the security system of the CF, strengthening the material base, the formation of modern information and telecommunication infrastructures, ensuring the necessary level of social protection of the PMC employees, introducing modern technologies and technical means into practice of conduct of sentences and many others have remained unresolved.