Last days in the press there was news that the Federation Council approved a law allowing the Constitutional Court of the Russian Federation to determine whether to execute the verdicts of the European Court of Human Rights handed down on complaints against Russia. The law was adopted on the 4^th of  December 4 by State Duma of Russia.

According to this law, the Constitutional Court in deciding on verdicts of this kind will be  governed by the rule of the Constitution.

The law has not yet been signed by the President and still does not enter into force, but we will try to find out is it correct according to international law?

Federal Law № 54-FZ of 30 March 1998 "On ratification of the Convention for the Protection of Human Rights and Fundamental Freedoms and its Protocols" The Russian Federation has ratified the Convention for the Protection of Human Rights and Fundamental Freedoms  and, accordingly, the provisions of the Convention are REQUIRED to be fulfilled by the Russian Federation.

Under Part 4 of Article 15 of the Constitution of the Russian Federation: the commonly recognized principles and norms of international law and international treaties of the Russian Federation are an integral part of its legal system. If an international treaty of the Russian Federation stipulates other rules than rules  stipulated by inner law, then will be used  rules of international treaty.

Also, the Russian Federation is a member state of the 1969 Vienna Convention.

Article 26 of the Convention reaffirms the basic principle of contract law «Pacta sunt servanda», which means that existing contracts are mandatory for the participants and must be faithfully observed.

Also according to the Vienna Convention on the Law of Treaties, 1969, article 27 "A party may not invoke the provisions of its internal law as justification for failure to perform a treaty"

Accordingly, the Constitutional Court can not decide with decisions of ECHR Russia will comply with and which not!