This book brings together works on the past and present of the laws, justices and security institutions of the province of Buenos Aires. This theme raises a complexity that has only been partially analysed, and that we want to deepen here by adding contributions from different disciplines and perspectives. The most recent contributions of the Social Sciences, which have dealt with the overexposed issue of security and the institutions that hold the monopoly of state coercion, are used for this, together with the contributions of the so-called social and cultural history of justice. and the security institutions of Latin America. The authors that make up this compilation seek to advance in the knowledge of normative frameworks and social practices in the Buenos Aires territory,