Forensic medicine is a broad term used to describe a group of medical specialties which deal with the examination and diagnosis of individuals who have been injured by or who have died because of external or unnatural causes such as poisoning, assault, suicide and other forms of violence, and apply findings to law (i.e. court cases). Forensic medicine is a multi-disciplinary branch which includes the practice of forensic pathology, forensic psychiatry, forensic dentistry, forensic radiology and forensic toxicology. There are two main categories of forensic medicine; Clinical forensic medicine; Pathological forensics medicine, with the differing factor being the condition of the patients. In clinical forensic medicine it is the investigation of trauma to living patients, whereas pathological forensic medicine involves the examination of traumas to the deceased to find the cause of death.