the appropriate domestic body, at least in substance and in compliance with the formal requirements and time-limits laid down in domestic law and, further, that any procedural means that might prevent a breach of the Convention should have been used. However, there is no obligation to have recourse to remedies which are inadequate or ineffective (see Aksoy v. Turkey, 18 December 1996, §§ 51 - 52, Reports of Judgments and Decisions 1996-VI, and Cennet Ayhan and Mehmet Salih Ayhan v. Turkey, No. 41964/98, § 64, 27 June 2006).
81. It is incumbent on the respondent Government claiming non-exhaustion to indicate to the Court with sufficient clarity the remedies to which the applicants have not had recourse and to satisfy the Court that the remedies were effective and available in theory and in practice at the relevant time, that is to say that they were accessible, were capable of providing redress in respect of the applicant's complaints and offered reasonable prospects of success (see Cennet Ayhan and Mehmet Salih Ayhan, cited above, § 65).
82. The Court notes that the Russian legal system provides, in principle, two avenues of recourse for the victims of illegal and criminal acts attributable to the State or its agents, namely civil and criminal remedies.
83. As regards a civil action to obtain redress for damage sustained through the alleged illegal acts or unlawful conduct of State agents, the Court has already found in a number of similar cases that this procedure alone cannot be regarded as an effective remedy in the context of claims brought under Article 2 of the Convention. A civil court is unable to pursue any independent investigation and is incapable, without the benefit of the conclusions of a criminal investigation, of making any meaningful findings regarding the identity of the perpetrators of fatal assaults or disappearances, still less of establishing their responsibility (see Khashiyev and Akayeva v. Russia, Nos. 57942/00 and 57945/00, §§ 119 - 21, 24 February 2005, and Estamirov and Others v. Russia, No. 60272/00, § 77, 12 October 2006). In the light of the above, the Court confirms that the applicants were not obliged to pursue civil remedies and rejects this part of the Government's objection.
84. As regards criminal law remedies provided for by the Russian legal system, the Court observes that the applicants complained to the law enforcement authorities immediately after the disappearance of Khava Magomadova and that an investigation has been pending since 12 February 2003. The applicants and the Government disagreed about the effectiveness of the investigation into the disappearance.
85. The Court considers that this part of the Government's objection raises issues concerning the effectiveness of the investigation which are closely linked to the merits of the applicants' complaints. Thus, it decides to join this objection to the merits of the case and considers that the issue falls to be examined below.
II. Alleged violation of Article 2 of the Convention
86. The applicants complained that Khava Magomadova had been arrested by Russian servicemen and then disappeared and that the domestic authorities had failed to carry out an effective investigation of the matter. They relied on Article 2 of the Convention, which reads:
"1. Everyone's right to life shall be protected by law. No one shall be deprived of his life intentionally save in the execution of a sentence of a court following his conviction of a crime for which this penalty is provided by law.
2. Deprivation of life shall not be regarded as inflicted in contravention of this article when it results from the use of force which is no more than absolutely necessary:
(a) in defence of any person from unlawful violence;
(b) in order to effect a lawful arrest or to prevent the escape of a person lawfully
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