Am I certain that others have done wrong? Kant on judging misdeeds (of others)

This paper provides a detailed analysis of how, according to Kant, the moral badness of some third parties’ actions can be established with certainty (by anyone, not only by the agent’s own conscience or by God). This account helps clarify why Kant affirms that some forms of wrongdoing (of which there are a “multitude of woeful examples”) can be demonstrated to be immoral, while excluding the possibility of proving the moral goodness of any action. The paper concludes by arguing that the possible certainty of judgements imputing immorality to actions of others is not rational but rather moral.