In this presentation, Charles Heller and Lorenzo Pezzani will discuss the nature of contemporary borders and the ever-shifting modalities of border violence. Drawing on their work within the Forensic Oceanography project since 2011, which has focused on the Mediterranean frontier, they will discuss the strategies they have used to document traces of violent events and seek accountability for them. Reflecting on the effectiveness, but also the ambivalences, limits and blind-spots of this practice, they will point to the directions they are beginning to explore within their new project, Border Forensics.