Maintenance of the security, discipline and order in penal institutions is a base for implementing treatment smoothly.
  Punishments may be imposed on inmates who have not followed rules specified by the warden of a penal institution or have not followed instructions by staff for maintaining discipline and order. In 2005, disciplinary punishments were imposed on 53,579 inmates (under the old Prison Act). Among them, neglect of work duty (neglect of work without due reasons; 22.7%) and physical violence on other inmates (10.8%) had high percentages (Source: Annual Report of Statistics on Correction).
  Table 2-4-2-3 shows the incidents that occurred in penal institutions in 2005, including escapes, homicide and injury, etc.
  The number of incidents in 2005 was 35, a decrease of three cases or 7.9% from the previous year.

Table 2-4-2-3  Number of incidents that occurred in penal institutions (2005)