Today, almost in real time, victims of war and crimes use mobile devices to film and photograph their experiences. We show how international investigators collect this evidence for criminal prosecution.

All around the world, human rights activists, journalists and lawyers collect evidence of human rights violations – with the help of victims. Using mobile devices to film and photograph their experiences, they become digital witnesses. Amateur videos of bombs exploding, people being abused or even shot dead are distributed almost in real time via social media. Digital investigators use various forensic methods, from internet tracking to DNA analysis, to analyse and verify this deluge of images, supporting them with other evidence and scientific expertise. These criminological investigations have only one purpose: to bring to justice those who violate human rights. We meet investigative teams who use these cutting-edge technologies to document their research into the war in Ukraine, the destruction of Mali's cultural heritage, the search for mass graves in Colombia and the "Black Friday" bomb attacks in Gaza. We witness the entire investigative procedure, from training and visiting the scene of the crime, securing and analysing forensic evidence, to presenting their evidence in court.