133 Vgl. sehr deutlich hierzu etwa EGMR, Urteil vom 7. Januar 2010, Rantsev gegen Zypern und Russland, Appl. 25965/04, Ziff. 218 f.: "In the first place, this obligation requires the State to secure the right to life by putting in place effective criminal law provisions to deter the commission of offences against the person backed up by law enforcement machinery for the prevention, suppression and punishment of breaches of such provisions. However, it also implies, in appropriate circumstances, a positive obligation on the authorities to take preventive operational measures to protect an individual whose life is at risk from the criminal acts of another individual (…)