Fig. 4-1-2-3 shows the trends in the number of juveniles referred by the police for road traffic violations and the number of crackdowns on violations of Road Traffic Law related to driving of motorized vehicles, etc. (the number of notified cases of non-penal offenses and the number of referred cases for penal offenses) since 1966.
  The number of juveniles referred by the police for road traffic violations decreased substantially from 1987, when the scope of application of the traffic violation notification system was expanded. Since then, the number has tended to decline and was 78,496 (down 8.4% from the previous year) in 2002.
  Meanwhile, the number of crackdowns on juvenile violations of Road Traffic Law peaked at about 1.94 million cases in 1985. Since then, however, the number has tended to decline. The number of crackdowns in 2002 was 570,626, 494,025 cases (86.6%) of which were notified as non-penal violations. With respect to the percent distribution of types of violation in penal cases by juveniles in 2002, driving without a license had the largest share (39.6%) in the total number of cases, followed by speeding (25.6%), driving under the influence of alcohol (7.6%), and seating capacity violations (5.0%). As compared with adult cases, the percentage for driving without a license was significantly higher (5.3% for adults) among juvenile cases.

Fig. 4-1-2-3 Trends in the number of juveniles referred for road traffic violations and the number of crackdowns on violation of the Road Traffic Law (1966-2002)