The person known for turning his father over to the secret police for stealing grain from the government is a character named Pavel Raskolnikov from the novel "Crime and Punishment" by Fyodor Dostoevsky.
Here are the key points to understand:
1. Pavel Raskolnikov is the half-brother of the protagonist, Rodion Raskolnikov, in the novel.
2. He reports his father to the authorities for stealing the grain, leading to his father's arrest and subsequent death in prison.
3. This event plays a significant role in highlighting the moral and ethical dilemmas faced by the characters in the novel, especially regarding the concept of crime, punishment, and family loyalty.
Understanding this aspect of the novel sheds light on the complex relationships and themes explored by Dostoevsky in "Crime and Punishment."