: Should the heritage of justice be considered a “dark heritage”? The questions raised in this new issue of Criminocorpus journal in the context of the project’s 20 th anniversary celebrations in 2023 are in line with its long-standing willingness to promote the creation of a museum of justice in France to showcase the entire judicial world and penal chain; a unifying place that could bring together all institutional memories and would be both scientifically demanding and open to the public. The first virtual groundwork was laid in 2016 as we launched the first online digital museum dedicated to the history of justice. Since then, the editorial policy of Criminocorpus has always remained in line with this perspective . The question of the relationship between historians of justice and the notion of heritage was raised as early as the 1990s, when Jean-Claude Vimont set a few milestones pleading in favor of studying the penal heritage of Haute-Normandie by questioning his own