Do federal subjects of Russia need constitutional (statutory) courts?

Introduction: the article considers questions of the establishment of constitutional (statutory) courts in federal subjects of the Russian Federation and the possibility for other public authorities to exercise their powers. Purpose: to analyze provisions of the federal and regional legislation on constitutional (statutory) courts, statistics reflecting the efficiency of their activity and the necessity to establish these institutions in federal subjects of the Russian Federation. Methods: the methodological framework of the research is based on a set of scientific methods, including the dialectic method and general scientific methods of cognition (analysis, synthesis, induction and deduction). Specific scientific methods of cognition (legalistic, comparative and legal) were also used. Special attention was paid to the comparative and system methods of research. Results: constitutional (statutory) courts, acting as subsidiary bodies of the constitutional control, in many respects provide efficiency of other human rights and supervisory bodies (the Commissioner for Human Rights in a subject of the Russian Federation, the Prosecution Service). Therefore, they are indispensable for the protection of the constitutional system, rights and freedoms of citizens, settlement of disputes between authorities within a system of "checks and balances ". Conclusions: powers of constitutional (statutory) courts to implement specialized constitutional (statutory) supervision are exclusive and irreplaceable. It is impossible for any judicial or non-judicial authorities to equally substitute the constitutional (statutory) court of a federal subject of the Russian Federation for another body (except for the Constitutional Court of the Russian Federation in case such powers were delegated in accordance with Article 11 of the Constitution of the Russian Federation by means of agreements on the differentiation of areas of jurisdiction and powers between public authorities of the Russian Federation and public authorities offederal subjects of the Russian Federation).