Mites can be found in various habitats, they are sensitive to climate variation and disturbance of ecosystems. Many mites are phoretic on insects that are associated with plant and animal decomposition, therefore they can provide relevant information to forensic investigations, such as post-mortem time, causes of death, or temporal and geographical conditions of the place where the body was found. The study of mites at a crime scene or as part of the evidence that can be collected has very important functions. For example, mites can be used to determine cases of food contamination, to track shipments of illegal substances, as well as in investigations of murders, missing persons or cases of negligence. Mites are always present, even in environments where the presence of insects is scarce. Despite this importance, studies on the diversity of mites associated with decomposing bodies are scarce, and work on the matter is just beginning in Mexico.