Due to the increasing datafication of the lives of European citizens, the collection and especially the analysis of large datasets through AI systems becomes an ever more important tool for criminal investigations. Examples of such datasets are those resulting from the EncroChat and Sky ECC cryptophone operations, but even modern smartphones may yield enormous amounts of data, revealing personal information about many individuals that are of no interest to law enforcement whatsoever. When the outcome of the analysis of such datasets is used during criminal proceedings, the fundamental rights of both the defendant and other individuals may be compromised. In this session, we will critically examine how AI systems can be adopted for the analysis of large datasets in criminal investigations, and which possibilities exist for ensuring that fundamental rights of suspects, defendants and others are still respected.