Five cadavers were exhumed 8 months to 20 years after burial, as it was suspected that these persons had been poisoned with E 605. Parathion at doses of between 200 mg and 500 mg might have been administered. Parathion, aminoparathion, paraoxon, p-nitrophenol, and a decomposition product of CI solvent blue 78 (Ceresblau) were found 9 months after burial, and aminoparathion and p-nitrophenol could be detected 3 and 7 years after burial. Neither parathion nor its degradation products were found in postmortem samples 13 and 20 years after burial. As secondary findings, barbital was detected in specimens 20 years after burial. The analytical findings were confirmed by GLC mass spectrometry.