Abstract: Sarcosaphagous insects are very important to investigate some criminal cases. They are significant useful in estimating post-mortem interval（PMI） and corpse transfer post-mortem. Lucilia are very common sarcosaphagous insects. They like sunshine and are usually the earliest to touch the cadaver. These characteristics and others such as the stages of their larvae development can offer good evidences for criminal case investigation. This paper summarizes details of their application for estimating postmortem interval in recent years and reviews the methods to identify species and to determine the age of adult Lucilia with molecular biology and entomological morphology.

Key words: forensic medicine, entomology, review[publication type], Lucilia species, estimation of postmortem interval