Abdu v. Bulgaria (Application No. 26827/08) (Extracts)
44. Moreover, when investigating violent incidents triggered by suspected racist attitudes, the State authorities are required to take all reasonable action to ascertain whether there were racist motives and to establish whether feelings of hatred or prejudices based on a person’s ethnic origin played a role in the events. Treating racially motivated violence and brutality on an equal footing with cases lacking any racist overtones would be tantamount to turning a blind eye to the specific nature of acts which are particularly destructive of fundamental human rights. A failure to make a distinction in the way in which situations which are essentially different are handled may constitute unjustified treatment irreconcilable with Article 14 of the Convention […]. The said obligation also applies where a given type of treatment incompatible with Article 3 is inflicted by a private individual […].