In this paper I argue that Kant’s political and juridical philosophy justifies a type of normative legal positivism that implies specific notions of law and legal freedom which determine and restrict the sphere of action of judges and jurists. Finally, I defend that, according to Kant’s practical philosophy, the normative connection between justice and law is not supposed to be carried out at the juridical level, as a meta-juridical theory, but at the political one, making it a meta-political theory.

Kant’s essay ‘On a Supposed Right to Lie from Philanthropy’ claims that everyone has an unconditional duty of right not to lie under any circumstances. This claim creates a conflict within the doctrine of right because Kant also claims that each of us is under an unconditional duty of right to obey the positive law in force in the civil condition in all circumstances. In Kant’s specific example, truthfulness would violate the positive law because it would make the speaker an (...) accomplice to a crime. Since both duties flow from the requirement that we not act inconsistently with the possibility of rightful relations among humans, a juridical solution to the conflict must be possible. That solution is to recognize that lying in appropriate circumstances is akin to the use of force in self-defence or defence of a third party. (shrink)