2.3.2 In 2011/12 the JICS received 852 death notifications. All deaths are classified as natural or unnatural. Unnatural deaths are most often the result of accident, homicide or suicide. In 2011/12 47 unnatural deaths were reported, and in 16 cases the DCS could not determine the cause of death because no post-mortems were performed. In the same period, 20 suicides either by hanging, electrocution, overdose or setting fire to cells, were reported. A number of the suicides occurred in single cells or special care units, that apparently were not adequately monitored. It is unclear whether officials are trained to identify early warning signs that inmates may be suicidal.