What is the author's style in Crime and Punishment by Fyodor Dostoevsky?

Crime and Punishment is written in the third person. However, Dostoyevsky's narrative focus shifts throughout the novel. Crime and Punishment is widely credited as the first psychological novel and in many passages, Dostoyevsky is concerned with the state of mind of the central character, Rodion Romanovich Raskolnikov. In these passages-including those that relate Raskolnikov's brooding, the murder itself, and his encounters with the inspector Porfiry Petrovich-Dostoyevsky puts us inside Raskolnikov's head.