The chapter addresses the problem of the nation-state centrism of transitional justice through an ethnographic analysis of the self-lustration trial of a Polish academic historian, who was revealed as a secret communist agent by a powerful rightwing politician in the local media. The chapter studies closely the evidentiary process, court testimonies, and courtroom performances to show how law mediates and reproduces the relations of domination and inequality, as it becomes an arena for critical engagement with and even deconstruction of the terms of lustration by revealing, even if sporadically, the largely overshadowed histories of friendship and solidarity. In particular, the chapter highlights that lustration’s nation-state centrism, which manifests itself in its extensive dependence on state security archives and the court’s reliance on the testimonies of former security officers, poses crucial challenges for the court in ascertaining ambiguities and settling suspicions, and thereby gives ample room for the political instrumentalization of law, especially by rightwing groups.