Case report of autopsy from acute water intoxication is very rare. It accounts for 0.1% of allautopsys done in our University. Recently forensic autopsy was made in a case of acute water intoxication. Water intoxication often causes medical dispate resulted from transfusion. Thus a forensic appraisal standard was advanced, including: ① There was history of reduction of exterocellular osmotic pressure ② Cerebral edema, lung edema and more excretion are shown in clinic. ③ Concentration of the blood sodium was lower than 120mmol/L. ④ The transfusion order or speed was not proper. ⑤ Cause of death from general disease, injury and poisoning can be ruled out by autopsy.

Objective To investigate the postmortem redistrib ution of morphine in rat model of chronic morphine poisoning. Methods Samples including cardiac blood, liver, heart, kidney, lung and brain tissues were collected in the rats with chronic morphine poisoning at 0～96 h after death, respectively. The morphine amount was measured with solid phase ext raction-gas chromatography. Results The study showed an increase in morphine concentrat ion of postmortem cardiac blood. Significant increase in morphine level was also observed 24～96 h after death in liver, heart and brain tissues, while the kid ney morphine levels decreased at 96 h after death. In the liver there was the g reatest increase (25-fold) in morphine levels 96 h after death. All the sample s showed marked alterations in morphine concentration within 96 h after death c ompared with cardiac blood at time of death. The postmortem morphine levels in b rain were closely related to those in the heart blood. Conclusion The postmortem redistribution of morphine exists in rats with chronic morphine poisoning. The brain tissues may better represent morphine levels in heart blood at the time of death.