In 1879 he became the chief of the Petersburg Military District. From 1881 to 1886 he acted as Military Procurator-in-Chief of Russia and was responsible among other things, for the investigation and persecution of the organizers of the murder of Emperor Alexander II of Russia (1881).
In 1879 he took charge of the Petersburg Military District. From 1881 to 1886 he served as Chief Military Procurator of Russia and was in charge, among other things, of investigating and prosecuting those responsible for the assassination of Emperor Alexander II of Russia (1881).