The Office of the Medical Investigator directs all investigative activities statewide. Medical Examiner Investigators conduct field investigations.

There are Medical Examiner Investigators in every county that conduct investigations at the scene of death.  Investigators determine whether or not a death falls under OME jurisdiction, collect background information necessary for filling out a death certificate,  collect information related to the circumstances of the death and medical history, assume custody of the body to arrange for transport to the Salt Lake City central office and collect evidence.  They often travel to the scene of homicides, suicides, accidental, questionable, and/or unattended deaths as required, and conduct on-scene investigations as required by taking photos, and processing evidence on behalf of the Office of the Medical Examiner.