µ¦¦³¤µ¦³¥³Áª¨µ®¨´µ¦µ¥µª°´ n° °Â¤¨¸É¤¸µ¦¦ª¡µ«¡ Ã¥ µ­µª«¦·µ µ¦¥r¨¸ ª·¥µ·¡r¸ÊÁ}­nª® °µ¦«¹É ¹¬µµ¤®¨´­¼¦¦·µª·¥µ«µ­¦¤®µ´ · ­µ µª·µ··ª·¥µ«µ­¦r ´·ª·¥µ¨¥´ ¤®µª·¥µ¨¥«´ ·¨µ¦ eµ¦«¹¬µ 2551 ¨· ­··Í °´ ·ª·¥µ¨´¥ ¤®µª·¥µ¨´¥«·¨µ¦ µ¦¦³¤µ¦³¥³Áª¨µ®¨´µ¦µ¥µ´ª°n° °Â¤¨¸É¤¸µ¦¦ª¡µ«¡ Ã¥ µ­µª«¦·µ µ¦¥r¨¸ ª·¥µ·¡r¸ÊÁ}­nª® °µ¦«¹É ¹¬µµ¤®¨´­¼¦¦·µª·¥µ«µ­¦¤®µ´ · ­µ µª·µ··ª·¥µ«µ­¦r ´·ª·¥µ¨¥´ ¤®µª·¥µ¨¥«´ ·¨µ¦ eµ¦«¹¬µ 2551 ¨· ­··Í °´ ·ª·¥µ¨´¥ ¤®µª·¥µ¨´¥«·¨µ¦ ESTIMATION OF THE POSTMORTEM INTERVAL BY INSECT LARVAE FROM CORPSE By Sarinya Jarnlee A Thesis Submitted in Partial Fulfillment of the Requirements for the Degree MASTER OF SCIENCE Program of Forensic Science Graduate School SILPAKORN UNIVERSITY 2008 ´·ª·¥µ¨¥´ ¤®µª·¥µ¨´¥«·¨µ¦ °»¤´·Ä®oª·¥µ·¡rÁ¦ºÉ° “ µ¦¦³¤µ¦³¥³Áª¨µ ®¨´µ¦µ¥µ´ª°n° °Â¤¨¸É¤¸µ¦¦ª¡µ«¡ ” Á­°Ã¥ µ­µª«¦·µ µ¦¥r¨¸ Á} ­nª®¹É °µ¦«¹¬µµ¤®¨´­¼¦¦·µª·¥µ«µ­¦¤®µ´· ­µ µª·µ··ª·¥µ«µ­¦r ……........................................................... 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THESIS ADVISORS: ASST. PROF. THONGCHAI TAECHOWISAN, Ph.D., ASSOC. PROF. Pol. Col. PATCHARA SINLOYMA, Ph.D., AND ASSOC. PROF. DARAWAN WANACHIWANAWIN. 174 pp. The propose of this research was the comparison of the estimation of the postmortem interval between insect larvae from corpses and the opinions of the forensic medicinal doctor. The insect larval samples were collected from 35 corpses which sent to the Institute of Forensic Medicine Police General Hospital, Royal Thai Police, for medicocriminal investigations during March – November, 2008. The experimental breeding was carried out in ox liver for studying the life cycle interval for metamorphosis and identification of the insect. The results from this study indicated that the postmortem interval established by identifying the life-cycle stages of the insect which could related with the opinions of the forensic medicinal doctor at the high correlation level (r = 0.902). From the study of the larval morphology and development, it was found that there were 1 orders, 3 families, 4 genera and 6 species of the insects.The most frequency number of the insect and useful for estimation of the postmortem interval was blow fly; Chrysomya bezziana, C. rufifacies, C. megacephala and Lucilia cuprina. The flesh fly; Parasarcophaga ruficornis and The house fly; Synthesiomyia nudiseta. This information was potentially useful for estimating the postmortem interval of a corpse in forensic investigation by identifying the life-cycle stages of these insect species. Program of Forensic Science Graduate School, Silpakorn University Academic Year 2008 Student's signature ............................................. 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