Effects of insecticide dimethoate on the developmental rate of forensic importance sarcophagid flies

• Main Authors: Fahd Mohammed Abd Al Galil, Sureshchandra Popat Zambare, Fahd A. Al-Mekhlafi, Muhammad A. Wadaan, Mohammed S. Al-Khalifa
• Format: Article
• Language: English
• Published: Elsevier 2021-03-01
• Series: Journal of King Saud University: Science
• Subjects: Entomotoxicology; Forensic entomology; Sarchophagidae flies; Dimethoate
• Online Access: http://www.sciencedirect.com/science/article/pii/S1018364721000100

The impact of forensic entomology on the judicial systems within the twenty-first century has earned its great considerations in matters of death investigations. Such is highly elaborate in developed countries. Malicious destruction of evidence is prominent in cases of homicides. Insect evidence is one of the tiny evidence that is hardly lost. Cadaveric insects feed on the dead bodies in succession manner. First witnesses arrive within minutes to the injured dead bodies, or within 24 h in the absence of the wounds. They ingest chemicals found in the cadvers. The chemical substances have diverse effects on the developmental rate and the life cycle duration of these insects. The effects alter the Post Mortem Interval (PMI) estimation.The study focused on experimental investigations of the impact of dimethoate pose to sarcophagidae flies. The interaction of the chemicals with the tissues of the insect is phenomenal. Three species of sarcophagidae flies were used in the study Sarcophaga peregrine, Sarcophaga dux, and Sarcophaga ruficornis. Effects of various concentrations of dimethoate on such species were monitored under controlled conditions of humidity and temperature. The rate of development in the larval, prepupal, and pupal stages was investigated. It negatively correlated with the concentrations of dimethoate. The results were plausible enough to insure the dimethoate can alter the PMI determination, concurring with various studies in the science arena. Such investigations can establish useful links in following a crime. The study exploited a key phenomenon in medico-legal investigations.