The Court shall examine the case together with the representatives of the parties and, if need be, undertake an investigation, for the effective conduct of which the High Contracting Parties concerned shall furnish all necessary facilities.Much to my surprise, Hudoc still has 500 or so cases that refer to this article, but I'd be highly surprised if any of them were even remotely as politically sensitive as this one.
As icing on the cake, some of the applicants also get a straight-up Soering: the way they were treated by the Russian government rose to the level of a violation of art. 3 ECHR, the ban on inhumane treatment. On that one, I'm afraid I'm going to have to agree with the joint partly dissenting opinion of judges Jungwiert and Kovler: that's just rubbish. (They put it more politely, but still.)