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Estimation the time of death

Estimation the time of death. Early postmortem changes (Lividity-rigor mortis-Cooling) Postmortem reaction forensic entomology Other special information. examples. Body is warm; flaccid – time < 3 h Body is warm; stiff – time 3-8 h Body is cold ; stiff – time 8-36 h

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Estimation the time of death

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  1. Estimation the time of death Early postmortem changes (Lividity-rigor mortis-Cooling) Postmortem reaction forensic entomology Other special information

  2. examples • Body is warm; flaccid – time < 3 h • Body is warm; stiff – time 3-8 h • Body is cold ; stiff – time 8-36 h • Body is cold; flaccid – time >36 h

  3. cooling • تصبح معادلات الهبوط الحراري غير دقيقة في : - death due to infection - ambient temperature > 36 - freezing the body • العوامل الأساسية المؤثرة : - b0dy mass - - ambient temperature - body temperature • عوامل التصحيح : - clothes – humidity – wind ……………

  4. Postmortem reaction • Zsako reaction - stopping reaction 2-2.5 h - stopping irregular reaction 8 h • Pupil reaction - regular 5h – irregular 7-18 h • Chemical reaction - positive -5-7 h

  5. Other methods • Empting stomach : 3-6 h • Information of scene ( light – clothes –hair) • some chemical & enzymic tests - k : t= ( k x 3.23) x 8.2 - sperm : moving – time > 10 h

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