 Aamin Marritza, a Cardassian suffering from Kalla-Nohra, turns to DS9 for medical attention. Major Kira Nerys immediately recognizes the disease. He could only have contracted it when an accident occurred in the labor camp Gallitepp on Bajor during the Cardassian occupation. Kira herself helped liberate the camp and she knows of the atrocities camp commander Gul Darhe el committed. She is determined to convict Marritza for war crimes. The Cardassian first denies having Kallo-Nohra, then claims he was only a filing clerk. With Bajor wanting to convict him and Cardassia wanting his release, Sisko faces a tough decision. Then photographic evidence arrives.