The Fuse of Silence: The Dual Life and Tragic Toll of a Civilian Bomb Expert Dirk de Gier: This research reconstructs the untold story of Dirk de Gier (1912–1977), a civilian specialist in the Rotterdam bomb disposal unit "Groep de Knegt." Operating without military status, he faced High Explosives, PTSD, and post-war integrity investigations (CABR). This narrative explores collateral damage, moral courage, alleged fraud, and the ultimate mental collapse of a hidden resistance hero.