The continued incarceration of Delhi Chief Minister Arvind Kejriwal in the midst of a general election highlights the hard political realities that seem to determine which leader gets prosecuted or arrested on allegations of corruption. Over the decades, it has become clear that only an unfriendly regime usually pursues charges against key political rivals; and that the status of relations between the party that runs the government of the day and those facing such charges dictates the course of action for supposedly independent agencies.