Caractérisation des insectes nécrophages, leur utilité en médecine légale et dans les enquêtes judiciaires

Abstract

The Forensic entomology is the science that applies the knowledge of insects (and other arthropods) for civil and criminal proceedings. In this context, we thought interesting to bring new information about the fauna of Diptera associated with cadaverous decomposition in Algeria, at this moment unknown. Our goal is to obtain data that could be used for the forensics services involved in this case such as scientific police. During our period of study we conducted a series of experiments on the dead animals (dogs and rabbits), the faunistic inventory of species of necrophagous Diptera harvested leads to the census of 18 species belonging to 5 families. The family of Calliphoridae is by far the better represented particularly with the Species; Calliphora vicina , Lucilia sericata, Lucilia illustris and Calliphora vomitoria . These species provide tools that contribute to the definition of the time elapsed since the death or the post-mortem interval (PMI), which is extremely valuable in criminal investigations. To examine the relationship between the faunal structure of the necrophagous Diptera and the various stages of cadaverous decomposition, ecological indicators of structures and compositions and a statistical study consisted of an analysis of variance and hierarchical analysis were used.