Fig. 3-4-1-1 shows the number of mentally disabled persons, etc. (mentally disabled persons and persons suspected to be mentally disabled; hereinafter the same), cleared for non-traffic penal code offenses (excluding dangerous driving causing death or injury in traffic accidents; hereinafter the same in this section) over the last 10 years.
  Among the 384,250 persons cleared for non-traffic penal code offenses in 2006, 1,054 (up by 9.6% from the previous year) were found to be mentally disabled and 1,491 (up by 2.9% (id.)) were suspected to be mentally disabled. Mentally disabled persons, etc., accounted for 0.7% of the total in 2006.

Fig. 3-4-1-1  Number of mentally disabled persons, etc. cleared for non-traffic penal code offenses (1997-2006)

  Table 3-4-1-2 shows the number of mentally disabled persons, etc. cleared for non-traffic penal code offenses in 2006 by type of offense.
  The ratio of mentally disabled persons, etc. among the total number of cleared persons was the highest for arson, followed by homicide.

Table 3-4-1-2  Numbers of mentally disabled persons, etc. cleared for non-traffic penal code offenses by type of offense (2006)