We carry out an analysis of constitutional and legal fundamentals of implementations of the decisions of European Court of Human Rights in German legal order. We study the implementation of European Court of Human Rights and its decisions in Germany and in Russia in succession, paying special attention to the role of constitutional control bodies and the possibility to adapt German approach to Russian legal system. As far as the adaptation of best practice is concerned, we stress that despite the differences in approaches to implementing the ECHR decisions in Germany and Russia, studying it can contribute to the enrichment of national experience and optimization of own practice.