Kazerne Dossin owns a large collection of interviews. Many of these are complemented with files containing a variety of extra documentation. The large majority of the interviews were recorded by Johannes Blum, voluntary collaborator at Kazerne Dossin. He interviewed over 1100 deported and repatriated Jews, anti-fascists, resistance fighters, political prisoners, hidden children, Jewish refugees, their rescuers, etc. as well as the children of people from these different groups. The majority of the interviews were conducted in French, others in German, English, Spanish, Italian, Dutch, Polish or Yiddish. Besides the interviews of Johannes Blum the collection includes interviews recorded by Luckas Vander Taelen, Laurence Schram, Marian Handwerker, Ward Adriaens, Frédéric Molle, Myriam Abramowicz, Steven Gaertner and Herman Van Goethem. The often old-fashioned carriers are being digitised and made accessible for research. This process is expected to be completed in 2017.