Human remains detection dogs (HRDDs) are canines specially trained to find human decomposition scent and alert their handler to its location. They are used in many contexts including homicides, as well as natural and manmade disasters to search for human cadavers, body parts, or fluids. A selection method based on anatomical, olfactory, and behavioral traits that should be developed. The development of the dogs nose to the "real" material scent of the the human cadaver is how we train our dogs and is imperative in providing the precise odor markers the dog would see in the field. This provides our dogs an advantage over pseudoodors produced.
Martin, C., Diederich, C., & Verheggen, F. (2020). Cadaver Dogs and the Deathly Hallows-A Survey and Literature Review on Selection and Training Procedure. Animals : an open access journal from MDPI, 10(7), 1219. https://doi.org/10.3390/ani10071219