Forensic toxicology is a broad science that integrates principles and practices about toxicology and legal aspects, which occur in conjunction with medicolegal instances as with homicide, suicide, road traffic and other types of accident and/or disasters. Nowadays, the practitioners of forensic toxicology science have to deal with three chief sections, namely: postmortem, drug testing, and human performance forensic toxicology. Postmortem forensic toxicology is dealing mostly with investigation of abnormal deaths, or when drug intoxication incidence is assumed as a cause of death and no abnormal findings were detected during autopsy.