A coroner may, upon receipt of an affidavit from any person stating that he believes or has reasonable grounds to believe that a person who is dead and buried died from poisoning or other illegal cause, order the body exhumed and a post-mortem examination or autopsy conducted.
Circumstances under which coroner may order body exhumed
KRS § 72.440, under CORONERS, INQUESTS, AND MEDICAL EXAMINATIONS.
KRS § 72.440